gave Northrop a fairly reliable news, which further deepened Northrop's confidence in cooperation, and Yang Hui naturally had to put forward new requirements.

After summoning the people to the side and sitting down, Yang Hui began to discuss with the project leader of Northrop: "Now it seems that the success of the multi-role fighter we cooperate with is becoming more and more likely, but before this there is a sub-project to be studied, I think that a simple pitot tube air intake can no longer meet the use of the new aircraft." ”

Southwest Science and Industry now has not mastered much air inlet technology, from the J-7 learned three-dimensional axisymmetric adjustable supersonic air inlet technology, in the development of the J-7 breakthrough in the simple pitot tube inlet technology.

These technologies seem to be practical and simple, but they are not suitable for the new multi-role fighter project, and among the third twin-engine fighters, only the Rafale has this kind of design.

As for the three-dimensional axisymmetric adjustable air intake, except for the Mirage 2000, none of the third-generation aircraft adopts this backward design, and the newly developed third-generation multi-role fighter will definitely not plan to use these two designs again.

Yang Hui doesn't plan to use these two designs, but Northrop is a little embarrassed, you don't honestly learn from F18 to use the pitot tube intake design, what else are you going to do?

"You have learned the pitot tube inlet design in the design of the J-74, and we have come to the conclusion in the YZ1 test machine that there will be no conflict between the large side strip wing and the simple pitot tube inlet design, and we can use the simple pitot tube inlet design."

With a reasonable expression, Yang Hui looked a little suspicious of himself, but just a moment later, Yang Hui strengthened his heart and absolutely could not continue to use the old-fashioned pitot tube inlet design.

If a simple pitot tube intake design is adopted, this means that the new multirole fighter will become an attack-focused attack aircraft. The stats of the fighter that should have been there will be greatly weakened.

"No, we will definitely not use the pitot tube inlet design, the supersonic performance of this intake is not enough, we are a multi-purpose fighter, not an attack aircraft."

Although the supersonic speed of the aircraft can also be achieved by using the pitot tube intake, this is absolutely unbearable in Yang Hui's opinion. Such supersonic speed is a failure, and to fly at supersonic speed, it is still necessary to use a two-dimensional rectangular supersonic air intake, or even go further

"According to you, you mean to prepare for the use of a two-dimensional rectangular supersonic air intake? It's a good thing, but you don't seem to have any experience designing this kind of air intake. Don't look at me, we Northrop also have no experience in designing this kind of air intake, our YF17 and F18 all use pitot tube air intakes, and we have no way to help! ”

Northrop is also a bachelor, directly admitting that he has no experience in designing two-dimensional rectangular supersonic air intakes. If Yang Hui was not a reborn being, perhaps he would have compromised.

But Yang Hui is not an ordinary person, he always has his own ideas. If you don't have any experience in designing a two-dimensional rectangular air intake, let's try to do it! With the technical capabilities of the two giants of Southwest Science and Industry and Northrop, breaking through the rectangular air intake design is just simple and pleasant.

The No. 10 project in the previous face originally used the pitot tube intake, but later Commander Liu wanted to change the turbofan engine, so in order to change the turbofan engine, 0611 changed the original pitot tube intake. A two-dimensional rectangular supersonic air intake is formed.

This is the last machine after the final finalization of the face, the rectangular big mouth of ecstasy. Coupled with those six more ecstatic stiffeners, it's an iconic design.

Not to mention the quality of Project No. 10, what I want to explain here is only the breakthrough of the two-dimensional rectangular air intake, which is actually not too difficult, not to mention that with Northrop's participation, it is even easier to take this thing.

"No experience to say. We can't just use the pitot tube intake forever, and it's not too difficult to get it done with the strength of both of us. ”

This is called a lightheartedness, and even Northrop smiled contemptuously, indeed as Yang Hui said. The two-dimensional rectangular supersonic air intake was not difficult for the two partners, but Northrop did not have any motivation to develop a two-dimensional rectangular supersonic air intake.

Now Northrop has started the YF23 project, which uses a more powerful Garette air intake, which is a level more advanced than the two-dimensional rectangular supersonic air intake.

Northrop has skipped the two-dimensional rectangular air intake, which is a typical leapfrog development, people have more advanced things, where will there be any idea of the old two-dimensional rectangular air intake.

Despite being confident in the technical capabilities of the Northrop team, Northrop is still not interested in Yang Hui's proposal, but the problem is that Northrop can't reveal the slightest bit about the new air intake, which makes people feel more painful.

"We don't have any idea of a two-dimensional rectangular air intake, if you must use this air inlet design, you can only study it yourself, Northrop will definitely not pay a penny on this project, and will not ask for a copy of your technical data."

This is the best plan that Northrop can give now, since he is not interested in two-dimensional supersound, and he can't say it explicitly, so as not to destroy the atmosphere of cooperation between the two sides, he can only adopt a policy of ignoring and leaving himself alone.

Seeing that Northrop was not interested in two-dimensional supersonic air inlet technology, Yang Hui was not hypocritical.

"To be honest, we in Southwest Science and Industry are not interested in the traditional two-dimensional rectangular supersonic air intake, which is no longer suitable for the needs of the new era, and we need to develop and manufacture more advanced air inlet technology."

It's really not shocking, and the previous sentence is still saying how advanced and awesome the two-dimensional supersonic air intake is. The next sentence immediately overturns his previous sentence, and how confident it must be to be able to classify the two-dimensional rectangular air inlet into the traditional range.

Northrop felt that his partner was so interesting that he always came up with a puzzling sentence.

Only then did he ask with a smile: "Then Southwest Science and Technology means that there is a more advanced supersonic air inlet configuration?" Let's talk about it, and if it's good, we at Northrop will definitely be able to fund the project. ”

Even the person in charge of Northrop himself is a little unconvinced, when the world's mainstream is still using two-dimensional supersonic air intakes, this backward red republic can come up with something more advanced? It's not that easy to lead the world, and not all countries are American.

With disdain, the person in charge wanted to hear what kind of advanced air intake this was.

Yang Hui did live up to expectations, and he had already prepared a rhetoric that would break Northrop's eyes: "We have further developed on the basis of the two-dimensional rectangular air intake, combined with the design theory of high-speed waverider body and the actual wind tunnel test data, and found that the principle of supersonic shock wave pressurization can also be applied to the design of the air intake!" ”

When Yang Hui said this, he also pretended that you must keep it secret, for fear of being listened to by others, as if he really regarded Northrop as a good buddy, so he secretly revealed the news.

And Northrop heard that the whole person was not good, and when he heard Yang Hui's sentence of "high-speed wave-riding body, supersonic shock wave supercharging", he knew that this thing was no longer good. (To be continued.) )