When Lin Qiangsheng met Lu Na in Kuozhou, he was located in Xi. A group of visitors in suits and leather shoes came to the 603 Flight Design Institute in Anyanliang District, including foreigners with blonde hair and blue eyes, which made the employees of the Xifei Design Institute frequently look sideways.

They heard that the group was a delegation from Dongxing Aviation Industry Company, a newly established joint venture company with foreign shares. In addition to the 603 Institute, they also have to go to the 630 Flight Test Research Institute, which is also in Yanliang District, as well as the 618 Flight Control, Inertial Navigation, Optics Research Institute and the 623 Aircraft Strength Research Institute, etc.

The delegation was headed by Yang Wanli and Guo Yubao, an associate professor and researcher specializing in military aircraft in Kazakhstan. Lin Qiangsheng hired him as the chief engineer of China Eastern Airlines Industry, while Guo Yubao, who was good at computer technology, temporarily served as the deputy head of the delegation.

Since Yang Wanli heard that Lin Qiangsheng had plans to set up an aircraft factory, he contacted his former comrades-in-arms for help in many ways, and reserved a lot of technical and human resources for China Eastern Airlines Industry and got a lot of support from his old friends.

After Guo Yubao came into contact with computers, he taught himself computer programming and mastered industrial design software and other technologies with his interest and extraordinary comprehension, and now he has become the head of the network department of Dongxing Group, responsible for computer training and the company's network security.

China Eastern Aviation Industry Co., Ltd. is a joint venture between Dongxing Group and a part of Hafei's technical personnel and plant equipment, with Dongxing Group holding 65% of the shares and Hafei holding 35% of the shares.

Originally, Hafei couldn't come up with the money, but Dongxing purchased 3 Y-12 transport planes from Hafei, ordered 2 Zhijiu, plus the machinery and equipment for manufacturing and providing the aircraft factory. All of these purchases also made Hafei a lot of money, and they put 120 million yuan into the joint venture as a share capital.

After the establishment of China Eastern Airlines Industry, Lin Qiangsheng personally served as the chairman, and he and Yang Wan immediately sent an application for visits and exchanges to various aviation-related research institutes and aircraft factories in China.

First north and then south. They first went to Shenfei, 601 Aircraft Design Institute and 410 Dawn Engine Factory, these old aviation industrial bases have guarded the blue sky of the motherland for more than 30 years. In the case of the serious lack of R&D funds for the reform and opening up of the country, the technical personnel and engineers of these research units are still working hard for the national aviation industry!

The exchange group of China Eastern Airlines brought many young technicians who learned technology mining experience, and these were recruited from Harbin Institute of Technology, Harbin Engineering and other institutions. In recent years, it is not so easy for them to abandon state-owned units and choose joint ventures, thanks to the poor scientific research environment in the country now, which makes a large number of scientific researchers go abroad.

In the big picture. After thinking about it, many of these young people joined the Dongxing Group, and the most important thing is that Lin Qiangsheng personally promised to send them abroad for further study in the future, which is very attractive to technical researchers who want to go abroad to expand their horizons!

There are not only technical personnel related to aviation aircraft, but also four computer copiers and scanners operators in the exchange group, so that the arrangement is to maximize the absorption of the large number of technologies and rich experience accumulated by these enterprise research institutes.

There are so many aviation professional research institutes and production units in China, although now the reform and opening up everything is looking forward, but we can't let the technical data fall into ashes and decay in vain!

The useful Lin Qiangsheng plans to copy it back, this is called technology sharing, and China has always loved to engage in this set!

Since the founding of the People's Republic of China, there have been several industrial promotions, and the leaders of the older generation of countries have proposed to concentrate their efforts on doing great things. However, there is no shortage of promoting national development from point to point.

China's industry has a good tradition and mechanism of cooperation and struggle, can concentrate to overcome difficulties, often a key area is supplemented by the corresponding domestic many units to share the results, soon the results of the technology will be promoted, a certain field of domestic products have been a technological sublimation!

Although this has caused the level of technological dispersion to be unified, and the R&D units have lost their competitiveness, it has indeed rapidly developed and promoted the expansion and popularization of China's industrialization, so that the people can generally enjoy the benefits brought by technological progress!

In the past, there was no such thing as a patent. Technology belongs to the state, and the state will go wherever it wants.

In the past, technology sharing, solidarity and mutual assistance did play a great advantage. In this way, a large number of domestic production enterprises with strong industrial strength and first-class technology have grown up in a short period of time.

After the establishment of China Eastern Aviation Industry, it also made full use of this old method to learn from other research institutes and aircraft manufacturing units in China to increase aviation technology experience!

The aircraft design and manufacturing technology and turbojet engine technology of Shenfei, 601, 606 and Liming Engine Factory are all top-notch in China. They have also provided a large number of technical talents for the development of other aviation bases in China, such as many scientific researchers from the West Flying Chengfei are diverted from here!

In the name of the visit, Dongxing Aviation Industry exchanged China's first self-developed turbofan engine, the turbofan 5, and learned its design characteristics and research and development ideas. This is the core secret of any big country in the aviation industry, foreigners can sell you products but not technical ideas!

Although the domestic design is backward, China Eastern Aviation Industry does not even have this. Yang Wanli and others are here with what they can learn, they are not demanding, and it is good to be able to learn a little bit of design ideas and engineering know-how here!

Turbofan-6 aero engine, China's first thrust-to-weight ratio of 6 levels of military afterburner turbofan engine developed in the sixties, this engine at the end of 1980 all components and overall performance have reached the design index. Moreover, the R&D personnel developed an improved turbofan-6 version on the basis of the WS6.

This turbofan engine retains the dimensions of the original engine, increasing the maximum afterburner thrust of the engine to 138.2 kN. The maximum thrust has been increased to 83.3 kN, the thrust-to-weight ratio has been increased to 7.05, the performance has been greatly improved compared to the WS6, and the reliability, maintainability and fuel consumption have remained the same. Compared with the original design, the WS6G has increased the speed of the low-pressure rotor, and the fan has been changed from 3 to 2 stages, but the pressure ratio has been increased from 2.15 to 2.6, so the bypass ratio has been reduced. At the same time, the turbine inlet temperature was increased, and the original ring tube combustion chamber was changed to an annular combustion chamber. With the same dimensions as the WS6 and a weight reduction of 100 kg, the afterburner thrust in the design state is increased by 13.2% and the thrust-to-weight ratio is increased by 18.9%.

The meaning of this passage is that the researchers have improved the production and processing technology in the process of continuously improving the turbofan 6, making the mechanical parts more precise, more accurate, and better fitting, and they have developed new alloys and composite materials to reduce the weight by 100 kilograms while the engine dimensions remain the same, and the increase in the turbine inlet temperature also represents that the researchers have conquered a manufacturing process of superalloy materials.

In the process of research and development, 15 new materials, 8 new accessories, 17 new processing technologies have been adopted, and many experiments and supporting facilities have been established. In February 82, the first WS6G was tested on the ground, and its maximum thrust and afterburner thrust were measured to meet the expected indicators, and the actual flight test can be carried out!

However, at the beginning of 84, the whole engine research plan of turbofan 6 has been canceled, although its development plan was canceled because no aircraft used this engine, but the development of turbofan 6 has paved the way for the follow-up research and development of turbofan engines in New China, and laid a good foundation.

On its basis, the 606 factory transferred most of its strength to the research and development of the turbofan 10, which was later the Taihang engine. This engine began to be pre-researched in 79 years, and the leaders of the institute are organizing experts to write papers and apply to the higher authorities for project approval.

The 606 Institute is very sad and disappointed, because the R&D projects such as J-9, J-13, Qiang-6, and large transport aircraft launched in the 70s have been launched, and the turbofan six series engines, which have been developed for 20 years, have also been forced to lay off because there is no assembly object. The 606 Institute wants to continue to develop a new type of engine with greater thrust and more advanced power, how difficult it is to start from scratch!

After welcoming the visiting China Eastern Airlines Industry 606 Institute, he poured bitter water on them, and Yang Wanli also met many old acquaintances and friends. Most of these people are a handful of years, their most precious years are dedicated to the turbofan 6 and its modifications, let them follow the development of new turbofans, and then look at their age and energy to know what the result is, everyone sighs with emotion! (To be continued.) )