"General Lin, what about our new project?" After talking about this imitation project of the MiG-21MF, Qin Feng finally couldn't help but say something.

Qin Feng really wanted to know how this project was developing, Song Lao introduced it to General Lin, and also asked his superiors to pay attention to it, compared with this surveying and mapping imitation, the new annihilation is a key project related to future development, and it is related to the air force equipment in the next few decades.

Qin Feng was originally involved in this project, but he was ashamed that Qin Feng didn't have time now.

"The project of the new annihilation is still a wind blowing tunnel for the time being." General Lin said: "For this project, our country cannot allocate more scientific research funds for the time being. ”

The Air Force doesn't have that much money, and the country doesn't have that much money, so it can only be a wind tunnel for the time being, after all, this is the most economical.

Just like J-9, the original J-9 blew so many wind tunnels, and by the end of the project, it was also blowing in the wind tunnel, will this project be the same as the previous one?

"Some time ago, General Zhang came." Song Lao said, pointing to the two big characters framed on the wall: "At that time, we reported to General Zhang, and General Zhang was very happy after hearing it, and personally mentioned it to us." ”

Qin Feng looked at Song Lao's fingers, they were two powerful big characters, innovation.

This project, General Zhang is supportive, General Zhang is a Confucian general, mainly focusing on military scientific research, he is quite serious about the work, everyone is even a little afraid of him, last year, he fiercely criticized the three Yanmar, and now, General Zhang is here, but very supportive, but also to mention two big words.

From these two words, Song Lao saw hope. Qin Feng has already flown the Mirage 2000, and he also knows the gap between his own side and the Western world, so this project of his own side must be the only plan to meet the needs of future air battles, and his superiors will definitely support it!

"Right now, we're still in the blowing tunnel, and we're mainly accumulating experience for the development of our digital fly-by-wire operations, but now we still have a problem." Song Lao looked at General Lin and said, "We have to determine its engine." ”

When blowing in the wind tunnel, the shape of the aircraft must be determined, and parameters such as the air intake tract must also be determined, otherwise, the characteristics are not the same at all.

Hearing Song Lao's words, Qin Feng was stunned for a moment: "Song Lao, isn't it planned to use Vortex Spray-15 now?" ”

At the last meeting, this power system has been talked about.

Turbojet-15 is relatively simple, is Qin Feng personally involved in a project, when he went to Egypt, got back the MiG-23, and its supporting engine R-29-300, this is a unique high-thrust turbojet, the maximum thrust is 12.5 tons, is the first time in China to contact the maximum thrust of more than 10 tons of advanced engines for fighters.

In terms of thrust, it was sufficient, but it was designed in the mid-sixties; Although the thrust is 12.5 tons, the dead weight is more than two tons, the thrust ratio is low and the fuel consumption is high.

The products of the Soviet Union have always been five big and three coarse, high performance, long life, easy maintenance, etc., of course, there is no way to talk about it, the only advantage is that its original design is mature and reliable; After getting it, the country began to survey and map it to imitate, although the surveyed and mapped model is definitely inferior to the prototype, but roughly what can be done can still be known.

However, will the Turbojet-15 be able to hold up the sky of the future?

Now, when the whole world is striding towards the era of turbofan engines, continue to use turbojet for the J-10, a target aircraft of the Chinese Air Force that was planned to be finalized in 1996 and entered service in batches at the turn of the century? This seems irresponsible.

But what else can be used except for the Turbojet-15?

Turbofan Six?

Everyone knows that the bottom of the turbofan six, even if it is a new stove, it cannot continue to be consumed on the turbofan six, it is destined to be an unsuccessful project.

Veteran Song looked at another engine, the engine that was being pre-researched and the same engine as the power system of the third-generation Western aircraft, Taihang.

This engine was pre-developed in 1978, which is the experts of the aero engine department, who believe that there should be an advanced third-generation engine in China, and they expect the fighter to have high performance, relying on the current turbojet-15 is not enough, and a new turbofan engine should be designed for the new J; Otherwise, due to the problems of overweight and fuel consumption, the new J-1 will not be able to meet the predetermined needs in terms of maneuverability, range and airtime.

However, this Taihang engine scheme is almost nothing, and there is no reliable design scheme, especially the detailed design scheme; There is only very rough information about thrust, intake flow, engine size, weight range, etc., which is completely on paper.

The core engine of the later Taihang engine is derived from the mapping and reverse engineering of the CFM56 engine of the US-French cooperation, although it is a civilian engine, but the core engine of CFM56 is derived from the American F101 military engine, and another most famous derivative series of F101 is the F110 engine.

However, China has the opportunity to come into contact with the CFM56 engine until 1985, when the first Boeing 737 passenger aircraft of the United States was delivered to China; By the time the detailed plan was really refined, it was already after 1988.

At present, if the engine is not determined, the development of fighter planes will be dragged down, and the impact of the establishment of an aero engine project will be enormous.

The turbofan VI project has been stopped, should this new third-generation engine project be erected?

As an aircraft designer, Song Lao certainly hopes to have an advanced engine, and Song Lao is not optimistic about the turbojet 15.

However, now, because of its simple and reliable technology and performance, the turbojet-15 is used as the power system of the J-10 by the Air Force and the Commission of Science, Technology and Industry for National Defense.

Old Song looked at General Lin with an expectant gaze.

It would be great if the Air Force could support the development of advanced turbofan engines, and now, although everything is on the drawings, it is necessary to work hard and advance step by step before there will be a future.

Hearing Song Lao's words, General Lin shook his head: "Song Lao, turbojet-15, after all, we are sure, you should know that the engine development and improvement work after the founding of the People's Republic of China has been chaotic and inefficient, so the superiors have no confidence in the self-developed engine, maybe the fuel consumption will be high, the dead weight will be large, it is a practical plan after all." ”

"Old Song, I support General Lin's opinion." At this moment, Qin Feng also spoke, Qin Feng's words made Song Lao also surprised, what? You actually support a backward turbojet? Aren't you the most fond and advocate of technological advancement?