Turbojet-15, is a key project on the domestic military engine, the country has concentrated several places, together with joint surveying and mapping, 606 institutes, 120 factories, 420 factories, 011 base about 200 people, as a technical force, support 410 factory, together with 410 factory for surveying and mapping imitation, but it is not easy to produce this engine.

Even if you know the internal structure, the specific size of each blade, and all the internal structures of the combustion chamber, even if you draw drawings at the micron level, it will not work.

Among them, an important issue is technology.

If surveying and mapping can be done, then as long as an F100 is obtained from the United States, it will be able to produce the same third-generation advanced turbofan?

Of course, this is not possible.

In this case, if you want to imitate it, it is at most a model, and it is absolutely impossible to start the machine, and the parts that cannot be reached in technical performance may soon fail.

How long will the Turbojet-15 take? No one knows in their hearts, but it is enough to say that it is enough to catch up with the development progress of Project No. 10.

Song Lao was worried about this, so he came to see it in person, on the one hand, for the J-7 project, and on the other hand, for the future No. 10 project. If there is no Turbojet-15, then what will be used to fly?

But now, Wen Lao gave a very simple statement, which is not easy to say, directly use imported engines to test flights!

For a test flight of an airplane, it is necessary to build five or six prototypes, plus the spare ones, and import ten of his engines, which will be more than enough.

If it is other engines, it may be enough, such as F100 such an advanced engine, expensive, the country is absolutely unwilling to buy, however, this turbojet-15 is definitely not an advanced thing, this backward turbojet engine, is MiG-23 equipment, more than ten years ago products, the world is everywhere, easy to buy, not to mention, there must be a stock of backup engines in Egypt, as long as it is equipped with MiG-23 countries, you can buy it.

Use the purchased engine for a test flight first!

Hearing what Wen Lao said, suddenly, Song Lao's eyes lit up, yes, if it is directly purchased, then you don't have to worry about your own test flight, as for the formal equipment of the troops, the test flight will take several years, so that you can just catch up with the turbojet-15 imitated by your own surveying and mapping.

That's enough on the progress.

But...

Song Lao's mouth still let out a sigh, now, the Western world has begun to replace the turbofan engine, his own aircraft is aimed at the air threat of future generations to develop, but it is still using backward turbojet engines.

"Old Song, what are you sighing about?" Qin Feng immediately asked.

"Our planes, if there were advanced turbofan engines, how nice it would be!" Song Lao is engaged in airplanes, not engines, if he is engaged in engines, he really wants to raise his own funds and develop one.

Now, Song Lao is helpless about all this, especially now, the country almost does not have an overall plan, the turbofan six has been launched, there is no pre-research turbofan engine in China, the future sky, the need for advanced aviation power.

"Old Song, I know what you're thinking." Wen Lao said: "I think we should jointly write a letter to our superiors." ”

That's right, the country is undergoing economic transformation, the army has to be patient, a large number of projects have been cut, but at the same time, the country must also be forward-looking, an advanced turbofan engine, will support the future aviation project, now, must be pre-researched, compared to the Western world, has fallen behind, if it is not on the horse now, then I am afraid it will continue to lag behind.

This kind of pre-research must not be stopped, once stopped, if you want to catch up in the future, it will be even more impossible, and Song Lao has actually been looking forward to it, his new annihilation, it is enough to replace the turbofan.

At this time, what should I do? One of the suggestions put forward by Mr. Wen was that everyone should write a joint letter together.

The heads of various factories and institutes of aero engines, the developers of fighters, and so on, together with everyone, wrote a letter to their superiors to explain the significance of developing domestic advanced high-thrust engines, this project must not be broken, no matter how difficult the road is, we must go on!

"Yes, let's write a letter to our superiors together, but this project must have the meaning of realization." Song Lao said with a wry smile.

In fact, everyone has been waiting for the turbofan six for many years, and many aircraft are designed to take the turbofan six as their own aircraft engines, but what is the result?

This project has been discontinued! Now, if you jointly petition your superiors and hope to launch a new project, what will your superiors think, and will you think that it is a huge waste of scientific research funds?

The development of aero engines is originally a money-burner, look at the Americans' F100, when it was developed, how much money was burned, how many years it took to take it, and their own side really did not have that economic strength.

Looking at the world, there are not many people who can independently develop aero engines.

When Elder Wen heard Song Lao's words, there was a special gaze in his eyes, and then he glanced at Qin Feng: "Qin Feng, in the past few years, you have been to many places abroad and seen a lot of new things, do you have any ideas?" ”

When Qin Feng heard Wen Lao's question, he knew that he was teaching himself, but Qin Feng did not shirk, he pondered for a while, and said: "The research and development of aero engines starts from the core machine, which is the most formal process, but it takes a lot of time and energy, we can't afford to wait, if we want to say that it can be launched quickly, and it has the possibility of success, it is to find a core machine in the West to imitate." ”

Mapping the engines of the MiG-23, they are all stumbling, and you still want to survey the core aircraft of the West? That will inevitably require greater efforts, but, even so, the surveying and mapping core machine, that is also a shortcut, after all, this is the most suitable plan that the West has verified after many failures, which is equivalent to them going through the wrong road, and finally finding the right road, and their own side can go directly along the right road.

This takes time, whereas it takes even more time to develop it completely in-house.

"However, the advanced core machine, we can't touch it, even if the 132 factory cooperates with Pakistan and intends to use the American F404, this kind of engine may not be able to reach our hands, maybe it will be installed in Pakistan." Song Lao said: "As for the high-thrust engine, it is the F100, and it is even more impossible for us to come into contact with this kind of engine." ”

Qin Feng shook his head: "Old Song, the third-generation engine with high thrust, there are not only F100, but also F110." ”