Chapter 637

Although it was determined that it was based on the tm-9 aircraft, what Tengfei group finally took out was the same as Yun 16, so that it didn't even recognize its mother.

It's not that the Tengfei group is deliberately engaged in the superposition of new technologies. It's difficult to improve the aircraft types for no reason. It's really that the indicators given by the air force and major aircraft research institutes are too harsh.

First of all, the ceiling must be more than 11000 meters, so that the combat aircraft system on the verification aircraft platform can carry out omni-directional actual test and data acquisition at high, medium and low altitude.

In addition, due to the vast territory of China, the system verification test of combat aircraft is carried out not only in the eastern plain and hilly areas, but also in the western plateau areas.

Otherwise, how is it possible to realize the full airspace combat readiness cruise of combat aircraft?

Therefore, improving the practical ceiling and optimizing the take-off and landing performance of plateau, especially Tibetan Plateau, naturally become important indicators.

The second is noise control, because it is necessary to carry the test equipment of radar system and avionics system, and these equipment are often composed of sensitive components, which have high requirements for the external environment, especially noise, which can easily cause interference and lead to inaccurate data reading.

This is one of the important reasons why the major domestic aviation research institutions are not very interested in the Soviet Union's Tu-154. In fact, it is very difficult for Tu-154's wild genes to do such fine work as noise control, especially the three hairpin shape layout at the tail, which leads to the surprisingly high noise in the middle and rear section of the aircraft cabin, coupled with the occasional vibration caused by air turbulence It is difficult to obtain accurate data for monitoring equipment piled up with sensitive components.

The third is safety. First of all, the equipment carried on the aircraft is of high value, and many of them are imported from abroad with high foreign exchange prices. It can be said that the chief engineers and experts participating in the test are all first-class talents in the aviation field.

If there is something wrong with the platform, such as falling or destroying, the loss will be immeasurable. Because of this, the safety index of the platform is very high.

Last but not least, the key is the cost. Although the army and several major aviation research units support the so-called "modification" project of Tengfei group, the money of the army and research institutions is not from strong winds. What's more, they are still living a tight life. They wish they could break a cent into eight pieces.

Therefore, the cost of the "modified" platform must not be high, otherwise several units can not afford it, so the platform must be optimized in cost.

It is an unprecedented challenge for any aviation manufacturing enterprise in the world, even those aviation giants in the United States.

Because this test is not only the production and manufacturing capacity of the enterprise, but also the full range of technology. If there is no sufficient technology accumulation and the lack of technology digestion in the aviation field, even if the enterprise looks strong, it is just a vain fat man who can't defeat the real experts.

Can Tengfei group do it?

The answer is one word: OK.

Taking a broad view of the world, Tengfei group may not match the technology accumulation of European and American aviation giants in the past 100 years, but in China, Tengfei group is definitely the enterprise with the richest technology accumulation.

This is mainly due to the continuous huge R & D investment, aggressive technological innovation system and open team R & D mode of Tengfei group.

On this basis, after years of development, especially the research and development of large UAVs and the production of several fixed wing aircraft, Tengfei group has accumulated a large number of high value-added aviation R & D and manufacturing technologies.

For example, the pressurization technology of the air tight cabin, for example, the integrated molding technology of the carbon fiber aramid honeycomb composite long body, for example, the advanced wing and T-shaped vertical tail structure

In order to reduce the impact of noise on the engine room, Tengfei group has no lack of precedent. Bullet a, which was provided to H company in that year, and a series of later derivative models, are mostly engine rear layout.

The same is true for UAVs upgraded with turboprop engines. Therefore, Tengfei group is no longer familiar with this layout. It is nothing more than changing from one engine to two.

The canard wing, which is responsible for stabilizing the center of gravity and improving the flight performance, is a difficult point. However, in the wind tunnel test project of various wing configurations carried out by Tengfei group in cooperation with Professor Ding laixiang, Lin Guanghua's tutor, there was research on canard wing.

Its achievements not only enabled Professor Ding laixiang to obtain the title of academician of the Chinese Academy of engineering, but also made Lin Guanghua's doctoral dissertation shine brilliantly, and enabled Lin Guanghua, an in-service doctoral student who applied for his master's degree, to obtain his doctoral degree smoothly.

Therefore, in the aspect of canard wing, Tengfei group is no different. Coupled with its own advanced materials and strong manufacturing capacity, it seems that Tengfei group has to integrate these accumulated things together.

In fact, Tengfei group has done the same.

Of course, this period has not been smooth sailing, and many details can not be solved by Tengfei group. However, this project is supported by many domestic aviation research units. Tengfei group is not a unit that is quietly trying to gain face. Of course, it is a variety of rubbing technology that can pull strong aid if it can, and can't pull it if it can't.After more than three years of hard work, the dl-11 "science fiction star" finally completed its development and successfully made its first flight. After a series of tests, it not only met the requirements of the mission statement, but also leaped up some indicators, such as the maximum ceiling and maximum speed, one after another exceeding the performance indicators of the mission statement.

This made the chief engineers and experts of the air force and other aviation research units extremely satisfied, and soon purchased two at a unit price of 6.5 million.

As soon as the first dl-11 "science fiction star" was delivered, it was taken over by the successful aviation manufacturing company and began to be modified according to the requirements of the project team of the 10th project, so as to be used for the actual verification and test tasks of the advanced radar, electronic equipment, nose fairing start and canard wing of the 10th project.

The second one was scheduled by Northwest Airlines for system verification test of fighter bomber and test verification of bomber electronic system, communication command system and missile attack system.

At this stage, even if the general aviation production enterprises have completed their tasks, the rest is to wait for the superior's commendation, receive the banners or thank-you letters from the aviation research and development units, and talk about the significance of this kind of aircraft to the development of the aviation industry in the media, and then Then there's no more.

After all, it's a special project led by the state. It's not easy to ensure the quality and quantity. What else do you want to do?

However, Tengfei group is never an ordinary enterprise, and Zhuang Jianye is famous for squeezing the surplus value of the model. If a platform with such excellent performance does not maximize its benefits, it is insulting the reputation of Tengfei group.

Therefore, under the guidance of Zhuang Jianye, dl-11 "science fiction star" is regarded as an intern after many years. It has made a deep packaging and is ready to officially debut at next year's Paris air show.

As for the purpose of two words: to make money!