In the middle, a lot of stories happened, Qin Feng heard Song Lao's story, and he really regretted it, if he wasn't busy with the test flight of Jian-7, these things would have to be experienced by himself.

Two years ago, at the finalization meeting, the team led by Song Lao was finally recognized by the superiors, but it is obvious that this kind of key model, which is related to the development of the motherland's air force in the next few decades, cannot be achieved overnight.

Song Lao led the team, while constantly improving his plan, and at the same time waiting for further recognition from his superiors, finally, last year, it was determined to use the turbojet-15 as the power of the fighter.

"The engine is the core of a fighter, and all our technical indicators revolve around the engine, and if the engine can't be determined, we can't do anything." Song Lao said: "Now, for the sake of safety, everyone has approved the power system of the turbojet-15. ”

Now, the turbofan six project has been launched, this project makes everyone in the aviation industry sigh, at the same time, the turbofan ten is also on the horse, but, now everyone is aware that waiting for the turbofan ten, is not safe, now the best way is to use a mature power to fly first, and then, wait until the turbofan ten is developed, the performance meets the needs, and then replace this engine.

And if you want to propel a medium-sized fighter, the thrust of the turbojet-15 is no problem, but this fighter with an imitation of the MiG-23 engine, the power can only be said to be sufficient.

"Now, the world's advanced third-generation aircraft have entered the era of turbofans, and only our fighters still choose turbojet engines, which is also a helpless choice." Qin Feng couldn't help but sigh when he heard Song Lao's words.

Helpless choice.

Aero engines are the laurels of the entire industry, and few countries in the world are able to produce engines independently.

Qin Feng remembered the Phantom 2000 he saw last time, the M53 engine equipped on it is the only single-rotor turbofan engine in the world, the total boost ratio is not high enough, the engine potential is limited, it is called the turbojet in the turbofan, but this is also a breakthrough after all.

It's a pity that there is a big gap between your own level and France, and if you add an outer duct to the turbojet-7 and turn it into a turbofan, it will not work, because you don't have this technical strength, and matching will be a big problem.

In this way, it can only be a complete mapping of the MiG-23 engine, this aircraft, originally imported from Egypt, this aircraft, greatly promoted the research and development of domestic military aircraft, the nose of the J-8, it refers to the nose of the MiG-23, and its engine, but also let the domestic scientific researchers ecstatic.

Of course, there is another advantage, if the progress of their own surveying and mapping is unfavorable, then they can also buy MiG-23 engines from the international market, so the initial development is guaranteed, without the engine, everything is in vain.

The weight of the engine, the intake flow, the diameter, etc., these data, all determine the basic design data of the fighter, without the engine, the aircraft of their own side will not be able to enter the stage of detailed design, and now, finally there is a conclusion, first on the turbojet 15!

"Yes, that's better than nothing, and now, everyone finally realizes that it is impossible to establish a project for a fighter and an engine at the same time, and the research and development cycle of the engine is much longer than the research and development cycle of the fighter." Song Lao said: "Let's use the turbofan 15 first, wait until our own turbofan ten is mature, and then go to the turbofan ten." ”

Song Lao and Qin Feng said, also thinking back to last year's selection meeting, in last year, there were actually a lot of projects involved in the selection, in addition to the turbojet 15 and turbofan 10, there are also F100, turbofan 6 modification, TF41 afterburner version through gas turbine reverse mapping.

Especially the last one, which is purely American, in the current period, this kind of spare power originally prepared for Tomcats may still be bought by their own side, after all, it is a notch lower than the F100 and F110.

However, when the meeting ended, everyone reached a consensus that outsourcing was not possible, and based on the existing is the best solution, so in the end, it was decided to use an engine like the turbojet 15 as the power.

"Fortunately, the engine has been selected, so let's enter the detailed development." Song Lao took Qin Feng and came to the office, at this time, on his desk, the plexiglass model was still there, ready to fly, whenever he saw this model, Song Lao seemed to see the scene of the new fighter spreading his wings, which would make him feel surging.

"This year, several more selections were carried out, and in the end, our new combat program was affirmed by the superiors, and the superiors officially decided to set the research and development of the third-generation fighter in Chengdu, and our 611 Institute undertook the design, and the 132 factory undertook the manufacturing." Song Lao said: "This is the greatest affirmation of our superiors, so we have made a military order, no matter how difficult the conditions are, we must develop the new annihilation!" ”

No matter how difficult the conditions are, this premise makes Qin Feng's heart also sink, Qin Feng naturally knows that compared with the 132 factories and 611 factories that export fighters to foreign countries and open up sales, funds have been very tight in the past few years, and he once again thought of Song Lao in order to raise funds, and even went to sell boxed lunches with his comrades, and he felt a sour feeling in his heart.

"Also, if you have time, contact Mr. Gu, after all, you are relatives, and now, he has encountered some problems." Song Lao continued.

Qin Feng didn't care about anything, and Song Lao now mentioned Mr. Gu again, which made Qin Feng stunned for a moment: "Is there something wrong with Jian-8 2?" ”

Song Lao nodded: "Anyway, J-8 2 is our first domestic fighter with air intake on both sides, and it has enough development potential, but well, we are engaged in aircraft, it is a system engineering, any small aspect, may cause big problems, this time, J-8 2 because of technical problems, can not participate in this year's major political activities, the superiors are very annoyed, Gu Zong, they are also under great pressure." ”

In October this year, there was a major political event, and as the latest fighter plane, it was unable to participate because of technical problems, which naturally made people angry.

Qin Feng also frowned, although Qin Feng wanted to work in Chengdu and felt that Song Lao's plan was better, but, after all, he had also tested the Jian-8, and he also had feelings for the Jian-8, if something went wrong, if he could contribute, of course he would also contribute.

When you're done with what you're doing, I'll take a look.

。 m.