In fact, is it necessary to continue to do the project of J-7, which can still be debated in the circle for a long time earlier, after all, there are already a lot of environmental variables in this plane, and other projects can be optimized because of someone's butterfly wings, can't J-7?

On the basis of TF-41, Southwest Power Machinery Co., Ltd. cooperated with Rolls-Royce Company to develop a second-generation and a half-thrust military turbofan, how could Xifei not know.

A military afterburner turbofan engine with a thrust of up to 12 tons, and the thrust-to-weight ratio can also be measured to 6.5 levels according to British standards, which is much better than the old Spey who used a maximum thrust of only 9 tons and a thrust weight of 5 levels.

With such abundant power, under the maintenance of the original range and bomb-carrying indicators of the J-7, the extra surplus power can completely make the designers of the West Flight more radical, at least in terms of aerodynamics, maybe it can also take more into account the air combat, and the thrust-to-weight ratio of the whole aircraft will also have a huge leap.

The so-called environmental variables have never been enjoyed by one party alone, especially under the military industrial system of the Republic, as long as the government and the army have finalized the general design unit, all parties will complete the game in the general direction, and finally reach the stage of detailed design and development of the model, which is usually completed with the strength of the whole country.

A good thing like the Qingcheng engine, if the J-7 is really continued to be developed, it will definitely not be able to escape, and the reason why the current J-7 is still forced to dismount is that there are too many high-level games involved, and it is difficult to say........

It is true that the dismount of the J-7 is the integration of resources, but it cannot completely integrate all the resources into one place.

The Shudu Institute has now won the No. 10 project, the South African cooperation project, and the 123 Factory Design Institute has obtained the super seven projects.

What's more, the Shudu Institute has gradually begun to integrate with the 123 Factory Design Institute, and the potential of the new Shudu Aircraft Development Center in the future is not to be said, and the wise leaders will never avoid a monopoly.

The Northeast is still very obedient at least for now, although the ability is slightly less than the little son who can toss, but in some cases, the obedient and well-behaved child is still very favored by parents, after all, it is worry-free!

Tu Zhengxing went directly to South Africa to participate in the project design after graduation, and he was not very clear about the way of the domestic aviation industry.

Some didn't quite understand: "It means that it is almost impossible for our South African project to be brought back to China now, and it is impossible to fill the demand after the seven launches?"

There are five people sitting in the spacious villa, almost all of whom have dealt with the development of aircraft, not to mention Wang Zhengguo and Comrade Wang, even Tu Zhenying, who usually hears more news in China, she has to clear the current domestic situation more than the South African side, which is closed to news.

"That's of course, this time the J-7 was dismounted, but the Fengtian Institute made great efforts to get it, in order to give them the J-8 major reform to fight for more living space, and it was not easy for people to grab the cake, and we have snatched the new J-7 project last time, with the experience of the past, now people must be on guard in their hearts. ”

If you want to repeat the old trick a second time, not to mention whether you can snatch the food from the tiger's mouth, I'm afraid the animal keeper next to you won't be able to look at it.

The situation doesn't need to be explained too clearly, everyone is not stupid, although Tu Zhengxing is still a little unwilling, but in the end, he can only temporarily extinguish the idea of returning to China with the South African multi-purpose program.

But young people, with flexible heads and quick thinking, it didn't take long for the previous topic to stop, and immediately had a new idea, Tu Zhengxing's eyes lit up, and he could retreat to the second.

"Our South African plan can't go back to China, but the Qingcheng high-thrust turbofan engine is Zhengguo, you are tinkering in China, if you can really get enough benefits from Xifei, I think it is more time to pull Xifei at this time, after all, everyone is working for the country, and you can't just watch Xifei's design cut off." ”

Enough benefits?

Wang Zhengguo can understand the meaning of this, it is nothing more than to take some aircraft outsourcing design and production shares from Xifei when the time comes, regardless of the wings, fuselage segments, landing gear, etc., in fact, they can be separated, as long as they can pull more to Shudu, no one will be too much.

"I understand what you mean, just this matter, the institute has not thought about it before, and even Mr. Tu went to Xifei to have contact in private, but now the military seems to have unified the caliber, the navy and air force are now quite optimistic about the J-8 overhaul, the conditions given by the British are very tempting, this time it is the British Aerospace Co., Ltd. to cooperate with Fengtian Institute to jointly carry out a major overhaul of the J-8, and also let Fengtian lead the project, so ......"

British Aerospace directly participated in the J-8 reform, and it was also led by Fengtian, Tu Zhengxing and Lao Wang both looked at each other, but they could understand why the Navy and Air Force should support the J-8 reform with a unified caliber.

Jokes, just listening to this tone, if you can't say it well, it is directly because British Aerospace provides the relevant technology of the Tornado fighter to the J-8 for use, and the domestic military will definitely not be able to resist the temptation of the big pie, the Navy and Air Force have had ideas about the J-7 before, and this time it will all disappear.

"In this case, there is really no way, it seems that it is difficult to continue to do it, I originally thought that after the Qingcheng high-thrust turbofan engine, China could also take the opportunity to launch its own twin-engine heavy multi-role fighter, but now it seems that it is really ......"

Then, in everyone's confusion, Tu Zhengxing ran back to the room and took out a bunch of slightly old drawings, but this "old" was obviously not the natural aging of the paper with the passage of time, but the result of the paper being folded and modified for a long time.

Spread out the drawings: "This was originally a twin-engine design proposed by Lieutenant General Jane Van Loglenberg of South Africa, although I personally feel that South Africa does not need this kind of heavy air superiority fighter, but I still used my spare time to roughly design a sketch, and the design is also based on the South African plan to enlarge it, similar to the relationship between the Mirage 2000 and the Mirage 4000." ”

The influence and status of the Mirage 4000 fighter in the eighties is probably similar to the Mukden Bone Eagle project in the upper plane after 2010.

Both aircraft were prototypes, and the technology seems to be advanced enough, and they also appear frequently at air shows, but the domestic military does not buy it, although the development units want to have the idea of exporting, but what the actual situation is, no one can say.

But no matter what the final outcome of the Mirage 4000 is, it can be regarded as a design idea based on the enlargement of a single-engine fighter jet, thereby improving the twin-engine heavy design.

After the opening up, there was not a small exchange between the Republic and the French aviation manufacturing industry, not to mention that the Mirage 4000 was originally a project open to the public, but Tu Zhengxing knew that these were normal.

Leaning over the drawings and taking a closer look, you can roughly understand what kind of design this thing is, compared to the lower wing design inherited from the Mirage 4000 from the Mirage 2000, the multi-purpose heavy combat improved from the South African scheme seems to look much more pleasing to the eye.

Since the South African scheme is a wing-body fusion design of the belly air intake, in this case, it is naturally more reliable to make amplification improvements, but someone can obviously see some MiG-29 routines in the air inlet design.

The same double-engine design of the belly air intake, the Typhoon chose the scheme of merging the left and right air intakes under the belly, while the MiG-29 and Su-27 Soviet-series aircraft chose to separate the air intakes to widen the distance between the left and right engines, thus forming a central lifting body.

Obviously, Tu Zhengxing's design of South Africa's double big thrust heavy battle is to take the Soviet route with wide engine spacing, which of course has a lot of advantages, such as better lift coefficient, more hanging points, and no interference between the left and right engines.

However, the engine spacing is widened, and the biggest obvious problem is naturally that the aircraft's roll ability is reduced, and if the spacing is too wide, it will also lead to the complication of the vertical tail design.

Anyway, in Wang Zhengguo's view, there is a big gap between the so-called South African program amplification plan and the single-shot plan, and there are probably not many similar technologies that can be generalized.

There was no need for Wang Zhengguo to stand up, so Comrade Wang shook his head first, not that he felt that there was a problem with the design of this aircraft.

"This plan to realize, I'm afraid it's not easy, South Africa has money, but it can't support the research and development, procurement, and maintenance of a heavy fighter, as for the country, even the J-7 has been completely dismounted, and this double-push design is probably more difficult to have a market. ”

The Mirage 4000 fighter was publicly displayed at the Paris Air Show as early as 80 years, and received the purchase intention of 50 aircraft, including the French Defense Committee, coupled with the optimism of Saudi Arabia and Iraq at that time, this was originally a promising project.

But now the time has reached the end of 85 years, except for the Paris Air Show five years ago, after the Mirage 4000 for various reasons, not only domestic orders are gone, export orders are also lost for various reasons, and finally the project was forced to abandon.

To say that the technology of the Mirage 4000 is not good enough?

I'm afraid this is not necessarily, the use of canard aerodynamic design scheme, coupled with the twin-engine design, coupled with the small radius turning maneuver of a bunch of third-generation aircraft on the air show that year, although because it is the home of the Paris Air Show, it is inevitable that there will be some moisture, but there are still some bright spots.

Even the Mirage 4000 has collapsed, and now it wants to start the same routine again, and there are even fewer users who start the Double Big Push South African program, which is really difficult to have a way out.

Looking at the double-thrust duck pneumatic scheme on the drawings, Wang Zhengguo seems to have seen the Jian-10 double-engine overhaul plan used by the upper plane to fool the vast number of melon-eating masses, which can be completely correct.

"It is indeed difficult for this kind of double-thrust multi-purpose fighter-bomber to develop in China, if you follow this plan, its cost is too high, the navy and air force only want a supersonic missile carrier aircraft with a large range and large bomb load, and no matter how much irrelevant technology you give it, as long as it is not urgently needed, people will not buy it. ”

Immediately afterwards, Wang Zhengguo also thought of the news he got before, so he might as well pull it out and talk about it.

"Of course, the performance of Qingcheng high-thrust military turbofan is there, we and Rolls-Royce company jointly developed, in fact, it is technically infinitely close to the third generation of push, far more than M-53, Lao Spey these goods, before I came I heard the news from Rolls-Royce, it seems that Dassault is inspecting the Qingcheng engine, it is said that it is ready to install the Mirage 4000 to go to the Middle East to cheat silver. ”

After replacing the Phantom 4000 with a high-thrust turbofan engine with better performance, how much energy this guy can burst out, even Wang Zhengguo can't say for a while, as for why these two are mixed together.

Hehe, anyway, the world's aircraft manufacturing industry is such a big circle, and the Rollsopey project department started the development of a high-thrust military turbofan engine, and it was when the Spey project department was about to be unable to open the pot.

Now the Mirage 4000 fighter is going to try the new engine, and Britain and France are uniting again to deceive orders from the export market during the gap in European fighter products in the eighties, which is simply not too normal, as long as it is profitable, it is also a rare thing for Britain and France to unite between the two natural enemies.

"Isn't Qingcheng an engine developed by you in cooperation with Rolls-Royce, how can it be used to cooperate with France, I'm afraid it's not good to say, the French haven't paid a penny, this British is really a daughter and a husband can't do it?"

Suddenly hearing this, Wang Zhengguo first laughed, this matter has to be said, Southwest Power Machinery Company really can't say anything, after all, the development of this engine is the backbone of Rolls-Royce Company, and the technology is in the hands of others, how can you say more.

Helplessly: "This is also a helpless thing, we can develop the technology and then transfer it to South Africa, and Rolls-Royce can naturally use it and make a profit, and we are still technically demanding from others, in a weak position, how can we ask for so much." ”

Wang Zhengguo is very open, the Phantom 4000 to face the European Shuangfeng that has begun to be developed, this is still a step late, since the domestic market can not be obtained, then the foreign market is even more difficult, especially this kind of double large push heavy machine.

Even though Dassault has now launched the Mirage 4000 project again, Wang Zhengguo is really not very optimistic about this guy, even with a high-thrust turbofan like Qingcheng, he can't escape the tragic fate in the end.

"What you say, that makes sense, we are still relying on the Rolls-Rodiscopy project department in engine technology, and we can't tear our faces for a while, as long as the project can be developed on time, we will be the biggest success this time." ”

As far as Comrade Wang is concerned, as long as he can ensure that his South African plan has an engine to use, he can't control any more.

"By the way, you come to South Africa this time, and when you go back, you can bring the exchange materials in the second half of the year back to the institute, and now is a critical moment for the prototype manufacturing in South Africa, although it is also facing various hardware problems, but we expect to be able to go offline next year. ”

The first prototype was manufactured in 86, which is relatively good, but I am afraid that many aspects will eventually lead to insufficient test data due to hardware equipment, so that the probability of problems with the prototype is much greater.