Li Shuguang had a sweet dream, and he didn’t know how long he had it. When he woke up, it was already dark.

Today, Li Shuguang found Chief Engineer Song and asked him to go to the Gas Turbine Research Institute with him to discuss the replacement of engines for the J-7-8 fighter jets.

Commander Song was also secretly curious. Could it be that this young man had so much confidence in aviation engines? Replacing turbofan engines on J-7 and J-8 aircraft was not an easy task.

However, General Master Song still brought Li Shuguang to the Gas Turbine Research Institute.

You must know that the current Gas Turbine Research Institute has not been called this name yet. It has a code name of Aviation Industry Institute 624. The current director is Zhang Jianshe, an authority in the field of aerospace engines.

The arrival of Song Wencong and Li Shuguang surprised Zhang Jianshe. Zhang Jianshe received them in the director's office.

Zhang Jianshe said with a smile: "Old Song Dynasty, you must not go to the Three Treasures Hall for no reason. There must be something for you two coming here!"

Song Wencong said with a smile: "That's right, we are here this time because we want to discuss with you the 624 Institute about the engine problems of our improved J-7-8 aircraft!"

Zhang Jianshe smiled and said: "Oh, you can put forward any ideas you have, and we will see if there is any way to solve it."

Song Wencong said with a smile: "Actually, our Comrade Li Shuguang will play the leading role today. He has some suggestions, which I think are very good, so I came."

Zhang Jianshe looked at Li Shuguang curiously and said: "Oh, Comrade Shuguang, I know you are very good at flight control now. How come, you also do research on our engines?"

Li Shuguang smiled slightly and said: "I dare not, in front of you, am I not just doing my best? I just have some small suggestions that I would like to put forward and let's study it together."

Zhang Jianshe sighed: "Well, actually we are also very helpless. Our aero-engine has always been a shortcoming. It is impossible to change the status quo in a short time. The turbojet 13 engine currently used by the J-7-8 fighter jets

, it is not perfect, we all know this, and improvement work has been going on, but it is difficult!"

Li Shuguang smiled and said: "Zhang Suo, actually what I want to mention is not the improvement of the turbojet 13 engine, but that we should install more advanced turbofan engines on the J-7 and J-8!"

Zhang Jianshe said in surprise: "Installing a turbofan engine? Do you mean to introduce the American F404 engine? This has little to do with us, and even if we want to imitate it, it will not be that fast. We are not talking about it now!"
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Li Shuguang said: "No, Zhang Suo, what I mean is that we design and develop a medium-thrust turbofan engine ourselves and install it on the J-7 and J-8."

Hearing this, Zhang Jianshe smiled bitterly and said: "How is this possible? Even if we want to develop such an engine, we don't have the conditions, and this is only possible if the superiors agree to establish the project. At present, we have nothing.

And even if the project is approved, from core aircraft to prototypes, and then to finalized mass production, it may not be possible for more than ten or twenty years. By then, our J-7 and J-8 will be almost eliminated, which seems unrealistic.

!"

Li Shuguang said with a confident smile: "It was impossible before, but now it may not be impossible. I have this confidence!"

Zhang Jianshe stared at Li Shuguang and said: "Do you have this confidence? But we in 624 don't have it. No matter from any aspect, we don't have this condition!"

Zhang Jianshe couldn't understand this young man like Li Shuguang. Isn't this a big lie? The aviation engine is not as simple as the flight control system. You, a young man, can come up with a fly-by-wire flight control design.

This may be enough to watch and learn more, but aircraft engines are different

Well, it requires the entire industrial system to support it, requires a lot of capital investment, a lot of manpower and material resources, and this is not necessarily possible. Aren't turbofan six engines and turbofan eight engines both precedents? Now they are all

Half-dead, the possibility of success is almost non-existent.

Young people are still too reckless and don’t know their own rights. It’s just that Zhang Jianshe couldn’t say these words to his face.

I think that when I was young, I was like this. I thought that as long as everyone worked hard, we would be able to successfully develop the model. We Chinese could also develop advanced aero engines that are available in foreign countries. However, reality hit me in the face. After experiencing

Zhang Jianshe, who has failed countless times, is now very conservative. If he talks about getting an F404 engine and copying it, there might still be some possibility.

But when it comes to independent research and development, it is almost impossible. Not to mention that the 624th Institute has no confidence, even the superiors will not agree to establish a project to develop domestic products.

Song Wencong knew about the construction situation, so he smiled and said: "Old Zhang, you might as well listen to what Comrade Li Shuguang has to say. I believe he will not say this in front of you without any confidence!"

Zhang Jianshe smiled bitterly and said: "It's okay, I just don't have confidence in myself. Well, Xiao Li, keep talking!"

Li Shuguang said: "Okay, in fact, through this popular topic, what I want to say is that our 624th Institute should propose to the superiors to develop a series of core aircraft. With this overall plan, then our aviation

Engines will be able to develop better in the future. This is how the aviation engine powers do it. With a core aircraft, we can develop a variety of different types of aviation engines based on one core aircraft.

Engine. For example, if this mid-thrust core engine is developed, not only will there be a mid-thrust turbofan engine, but also a high-power turboprop engine, and a naval gas turbine to meet different needs. Our Yunba

It will be improved in the future, so this will be useful. Our naval air-cushion landing craft and light frigates can also use the ten-megawatt gas turbine derived from the medium-thrust core machine!"

Unexpectedly, this young man was really prepared. Zhang Jianshe smiled and said: "You are right, but our country may not have such funds to support us in developing a series of core aircraft. At present, our aero engines are

In terms of overall planning, it is indeed not done well, it is a bit chaotic, everyone is doing their own things, and there is no unity."

Li Shuguang smiled and said: "Yes, so our 624th Institute should propose it. This is of great significance to the development of our aero-engines and will be needed in thirty or even fifty years. Speaking of mid-level promotion, I think within five years

It is possible to develop

Yes, our mid-range thruster does not need to pursue high performance. It is mainly used to replace the J-7 and J-8 aircraft. Therefore, it is necessary to make a low-cost mid-range thruster. The overall performance can reach the level of the F404, and it can be slightly exceeded in some aspects.
Chapter completed!