.The information on the motivations of Guan Ganyun brought by Song Shijia was highly valued by the large aircraft project team that had already come from Beijing and Buguang. Looking at the thick and thousands of pages of well-preserved detailed information, the only remaining experts in aircraft motivation research in China were excited.

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It is precisely because of countless ordinary technical talents like the Song Shi family who are highly responsible to the country and nation that support the soul of this unyielding nation.

Through the relevant information brought by Song Shijia, everyone can almost quickly reconstruct the entire process of developing old motors that year. They can also judge the advantages and disadvantages of this motivation from many details, and obtain the finished product in as short as possible, and then technically transform it through continuous testing and adjustments. Or add some designs that can improve its performance.

After receiving this exciting report, Fan Wubing was also a little excited. After all, as the heart of a large aircraft, the research on aircraft motives is the most critical. Although Yunxiyan was a motive for imitating Boeing, he also had many of his own technological innovations, especially in training the team, which is still a very valuable intangible wealth.

The emergence of Song Shijia and these information allows everyone to see a ray of dawn that the motives of domestic large aircraft are reproduced.

For this reason, Fan Wubing specially organized relevant technical experts and technicians from various departments of the original old transport project reported by the company. He held a symposium, mainly to recall the driving process of the old transport aircraft that year, and to consider where to start the driving of the current large aircraft project, where is the breakthrough point, and where can we obtain some new information as soon as possible to add it?

As a technician who has personally experienced driving of old motors, Song Shijia told everyone, "Run is a scar in the history of China's aviation industry. There were many grudges and grievances in the past, but now there are many debates. However, almost all the debates only revolve around the advantages and disadvantages of the products, but they cover up more important technical capabilities. At that time, the General Administration of Civil Aviation put forward opinions on the development of old aircraft, believing that the aircraft still has many major technical problems to be solved, such as the full-aircraft fatigue test that affects safety and economic performance has not been carried out, and the aircraft performance has to pass a large number of test flights before acceptance. The four major systems on board still lack test data, and some airborne equipment still have problems, etc. It is necessary to consider whether it is desirable to continue to develop aircraft similar to Boeing boron-type levels. Therefore, the country decided to stop developing old aircraft.

But from the perspective of technical ability development, this explanation is like saying that a baby who started to learn to walk online has not finally proved whether he can move forward in the future, so he is not allowed to survive."

The purpose of the economy has stopped, which has caused China to lose its own research platform. If you have a product platform, you can choose to test and integrate various new technologies to drive the progress of related technology networks.

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Complex product systems like aircraft that require tens of thousands of components require the integration of a large number of technologies, and each subsystem and even each single technology have its own specific properties and specific track of progress. The key problem is that if there is no application possibility that can only be provided by terminal products, the development of upstream technologies will lose the demand momentum.

Any technological progress is achieved by solving problems. Without the need for application, there is no motivation to solve problems, and even the problem itself cannot be raised. When some people argue that China cannot make products such as aircraft, automobiles, etc. because the basic technology is not working, the actual problem is that if we do not open products independently, who will work hard to open the upstream technology needed for the product?

On the contrary, if you open an independent product, even if you cannot master all the technologies for the time being, you can not only purchase them, but also create the motivation to open these technologies. Since terminal products are the application platform of upstream technologies, if you do not open a product platform, there will be no motivation to improve the entire technology chain.

The existing product platform is conducive to establishing a new product opening platform, not only because opening any new product requires the accumulation of technical experience, but also because the old platform can help technicians quickly grasp what the concepts and parameters of the new platform should be, reducing the cost and uncertainty that everything must be started from scratch.

For example, the first attempt to drive a jet aircraft in the United States was to install the jet engine on the Xiangyiyue aircraft, which originally used propeller motors, but its performance was not better than that of high-propeller aircraft.

But this experiment helped American engineers understand why the overall design of the aircraft needs to exist and how it changes due to changes in motivation. When the Canying aircraft designed specifically for jet engines was released, the advantages of jet aircraft were clearly revealed.

Although the new jet aircraft platform is a revolutionary progress compared to the old propeller aircraft platform, this revolutionary leap process is continuous. The reason is that the knowledge and ability of technology can only be cumulative. If you just want to buy other people's ready-made technology, it is basically difficult to achieve the predetermined goals for a huge system project such as a large aircraft project.

With technology, it may not mean that you can produce products, not to mention that people may not be able to remember that top-level technology is sold to a few people from decades of joint ventures. Stop the road is not feasible. Foreigners are more careful in preventing Chinese people in technology than guarding against thieves.

"Some people say that Yunji copied the American Boeing. I don't agree with this. Even Boeing itself has never said that." Song Shijia said to everyone, "For example, the layout of the motivation was the former Soviet Union used the wing root type, the British Trident used the tail hanging type, while the American Boeing used the wing hanging type. Through technical analysis, Yunji denied the Soviet wing root layout, and then made a one-to-one full-size wooden prototype to test the tail hanging type and the wing hanging type, and finally chose the wing hanging layout. This layout later became the mainstream layout in the world, not only the flying of Europe and the former Soviet Union

The aircraft have also been changed to wing crane layout, and the newly opened aircraft still use this layout now. For example, the most important aerodynamic component of the aircraft, the wings, the wings, the Soviet, British and American wings that could be obtained at that time were tested, and finally the British wings were selected, which made the wings better than the Boeing Bang in aerodynamic performance. The most valuable thing is that the designers of the wings originally grew up under the technical system of the former Soviet Union, but during the process of the wings, they broke through the limitations of traditional technical tracks, making the wings the first domestic aircraft designed in accordance with the British and American Airworthiness Regulations."

The road to assembly of foreign whole machines is not easy, so we take the path of subcontracting parts production. It is said that this way we can learn technology, go through the entire process, and cultivate the parts system, so that we can have the production capacity of the whole machine.

But the problem is that processing technology and component production are completely different from the overall design and system integration. In addition, Boeing and Airbus have strict control over subcontracting production and are scattered in layout. No country can learn a complete set of component technology through subcontracting. In order to learn technology, they must constantly accept new component work packages. Often when the previous subcontracting does not recover the cost in scale, they have to start accepting the next one, subcontracting.

When the international cooperation path of whole aircraft assembly and subcontracting production was useless, the joint venture and cooperation projects moved from trunk lines to regional aircraft.

After the state promised to allocate 10 billion yuan in 1992, the aviation industry department proposed the old badminton page of the badminton board, Jizai drove the Chinese aircraft platform by seeking cooperation with internationally renowned commercial aircraft companies and obtaining foreign technical support.

However, after China adopted the attitude of being willing to be a primary school student, the selected partner Airbus asked for a higher price, and even charged a technology transfer fee for every negotiation in business negotiations. It is said that it was because it wanted to explain to China how to build an aircraft. In the end, it was unresolved and left unresolved. The 10 billion yuan allocation was taken back by the state after spending part of it.

In the years since the reunion of the horse, the trend of China's civil aviation industry is that the project's seat level is getting smaller and smaller (the reunion is the blade seat, the McDonald is the four seats, and the McDonald is the smallest seat, and the McDonald is the smallest seat, and the McDonald is the smallest seat, and the McDonald is the smallest seat, and the McDonald is the smallest seat, and the McDonald is the same as the profit and loss of the McDonald project, and the old o budget is 100 million yuan).

"Abandoning independent design and relying on foreign design, China's aviation industry gave up the exhibition of high-end technical capabilities. In the process of cooperating with the assembly of foreign aircraft, Chinese companies can only learn partial manufacturing technology, but cannot learn the most important design technology. More importantly, in doing so, they hand over their own technical learning process to foreigners to control, and in the end they lose everything because of the other party's turn. Once they understand these principles, they will understand why once they embark on the road of abandoning independent design and relying on foreign design, China's civil aviation industry will fail one after another." Song Shijia finally said.

Everyone listened to the words of Song Shi's family very carefully and understood that at this symposium, many old comrades who had been lucky enough to have complained, but it was a good thing to let everyone know with their painful experience that there is no future if they do not follow the path of independent research. Even if they are imitating, they must start from the most subtle points by themselves, otherwise they will not be able to achieve their goals.

Fan Wubing also has a deep understanding of this, just like his cooperation project with Zhousi. If he just works for them, he will never learn to build chips. However, after he bought Motorola's bottom-end technology platform and obtained some technical information from other semiconductor manufacturing giants, he has now achieved considerable achievements by opening his own low-end processor. Now, the computer chips used by the smart home appliances under Fan's Investment Group are all products with their own independent intellectual property rights.
Chapter completed!