If you are a military fan from later generations, you can recognize it almost at a glance, J-20, black silk!

This aircraft model is a fighter built by Mhammad with his own memory, let Pakistan Aviation Industries Company, although it is only a model, but all aspects of the design of this fighter reflect the most advanced concept! It is best to use the technology of later generations to fool the people of the present.

For example, this bulge air intake is a technology that later generations began to apply on the F-35, DSI air intake!

The full name of this kind of air inlet is called three-dimensional bulge type unattached surface layer partition air intake, which simulates the first and second stage adjustable inclined plates in the conventional air intake by using a fixed bulge, and can achieve the compression of the airflow, which can simplify the structure and achieve the purpose of invisibility. Compared with conventional air intakes, this DSI inlet has three main advantages: first, it adopts a "cone flow" wave-riding design, and the total pressure recovery is higher; secondly, it reduces the resistance of the frontal side of the aircraft and improves the stealth performance of the aircraft; Third, the auxiliary intake valve and air release valve are not designed, and the aircraft can reduce the weight of hundreds of kilograms after canceling the surface layer partition, and the reduced weight will improve the performance of the aircraft. The structure is simple, light weight, low resistance, invisible, and has a wide range of speed adaptation.

However, this kind of air intake, which was first developed by Lockheed Martin in the nineties, really did not have any idea of now, and was first developed by Lockheed Martin. After more than ten years of development, it has finally matured to pre-compress the intake air through a three-dimensional surface bulge in front of the air intake, and at the same time increase the pressure distribution to "push" the air from the surface layer "away" the air intake. There are no moving parts, no surface layer isolation panels, and no bleed or bypass systems, which is an advanced way to intake air, but it's a pity. Even the F-22 was not used, and it was only in the F-35 that it was used.

Pakistan at such a time, demonstrated this air intake, which, of course, greatly surprised all the experts.

In fact, the design of this bulge is also very particular, and its surface area will greatly affect the efficiency of air intake. Pakistan's air intake, which was simply bulging and not particularly optimized in shape, was shocking enough to conquer these aircraft designers in an instant.

In the blink of an eye, Pakistan has changed from a backward industrial country to a country that can independently develop advanced fighters! Although there are still some aspects that are lacking, but. The local technology is excellent, even surpassing the United States!

Old Arslan, naturally, is playing a trick that wants to be caught and indulged, this thing is used to fool the Americans, and now, the Americans have been fooled!

"I'm sorry, guys. Please come with me. Old Arslan didn't answer their questions at all, and took them out of here.

in the eyes of all. They were all amazed by the model of the plane, and before leaving, they almost kept turning their heads and looking at the design of the plane, and the more they looked at it, the more they felt that the design of every place was so perfect. A lot of problems that they didn't think of, on this plane, have been easily solved!

The rest of the visit became boring, after it got dark. They dine at the restaurant here.

Looking at the old Arslan who warmly entertained everyone, everyone was thinking about the model of the airplane in their hearts, but every time they mentioned the beginning, they were sloppy by the old Arslan and pulled on other topics.

After eating, old Arslan arranged for them to stay in a guest house, next to them.

An hour later, there was a knock on the door.

"Who?" Old Arslan asked.

"I," Paul's voice came from outside.

"Come in." Old Arslan's assistant opened the door, and it was not just Paul outside, but also the heads of several other aircraft companies who had come to visit.

"Guys, what's the matter at this late hour?" Old Arslan asked.

Sitting on the sofa, Paul spoke first: "Mr. Chief of Staff, today, we saw the model of the aircraft that you are testing, we feel that it is very advanced, and we are very interested in it. ”

"That's what we designed to play with." Old Arslan said, "Is there anything else?" Alas, people are old, and now they are sleepy. ”

"No, please don't hide it from us anymore." John of Grumman said: "Your design is very advanced, we did our own research on the bulge of the air intake, and if the design is right, it can play the role of an adjustable air intake, and it also simplifies the design, which is a great innovation!" The shape of your nose allows you to maintain high aerodynamics and stealth performance, and you are truly at the forefront of technology in this regard. At the same time, you should also know that it is very difficult to develop a fighter, and you cannot successfully develop a cross-generation fighter with your own strength. ”

When you have enough strength, you will win the opportunity to be on an equal footing with the other side, and now, Pakistan's aviation industry has suddenly shown research results, which have surprised American military aircraft manufacturers, and proposed to share technology with Pakistan.

Old Arslan looked at the people in front of him, these are representatives of cutting-edge technology in the United States, and there was a trace of helplessness in Old Arslan's eyes: "Sharing technology with you, we are very worried about your reputation." ”

Credibility? This is simply an insult to the United States, Paul said: "We in the United States attach the most importance to credibility, and cooperation with Pakistan has always been based on credibility first." ”

"Really?" The elder Arslan said: "Then our matter about the engine production line of the F110 has been delayed for five months, and you have been perfunctory, what is going on?" ”

F110！ The most advanced military engine for the US Air Force! At that time, in order to obtain the complete aircraft of the most advanced Su-27 fighter of the Soviet Union, as well as the pilot, the United States reached an agreement with Pakistan to help Pakistan transform the F-14 Tomcat and replace the original engine of Pakistan with the F110 engine.

The first dozen or so planes were replaced quite smoothly, but when it was discovered that Pakistan actually used F110 engines to let the F-14 Tomcat fighter take off from the modified aircraft carrier, the United States immediately changed its attitude.

The follow-up F110 engine has not been supplied in time, and at the same time, the agreement reached with the United States to introduce the production line or something has been lost.

The United States did not tear up the agreement, but shirked it for various reasons, and the Pakistani side urged several times, but nothing came of it.

Of course, another reason is that the United States has touched all the details of the Su-27, and the Soviet Union began to push the Su-27 to the international market, and the United States felt that the exchange at that time was too worthless.

After all, the powerful F119 engine in later generations has not been seen at all, and this F110 can be regarded as the engine whose performance has been completely stabilized in the US military aircraft, and it almost represents the most advanced technology in the United States. The technology of this engine was completely supplied to Pakistan, which was originally wishful thinking on the part of Pakistan, which drew a big pie at that time, and now, there is nothing to eat.

Old Arslan unceremoniously told the F110 engine production line, and the people of Grumman who were present couldn't hold their faces, this project was mediated by Grumman, and General Dynamics was also willing to export, after all, this is a big project, and General Dynamics will make a lot of money.

However, the US Air Force did not agree, they changed their minds, and this state-of-the-art engine, which can only be used for its own use, cannot be exported. But the previous agreement had already been reached, and it could not be reversed, so the US Air Force pressed General Dynamics to delay the agreement.

Hearing old Arslan's words, Paul pretended to be surprised: "What's the matter? Is this project delayed? When I return to the United States, I must investigate this matter, and if I do not do anything good, I should take the blame and resign! ”

Paul said very seriously, in the United States, there are only more than 100 lieutenant generals in total, and no more than 50 are assigned to the air force, and the rank of lieutenant general is already the top leader of a locality, such as the US military stationed in Japan, the top leader of the air force, is a person at the level of a lieutenant general.

Old Arslan was excited for a while, it seems that with this as a bait, these Americans will no longer set up any stumbling blocks, of course, they can't give them all the technology right now, and besides, the current Pakistan does not have these technologies at all.

Those phased array radar rooms, just pretend, those walls, many of them are fake. This kind of machine was also hastily made half a month ago, including the bulge of the air intake, which was also made at the behest of President Mahmad, and a lot of theories can be proposed, but there is still a long way to go to really reach the application stage.

Now, it is completely fooling the Americans, and the Americans will not feel deceived because of this, during this period of time, their own side will improve these theories, and in a short period of time, of course, they will not be able to achieve correct results, but when the Americans get it, they can only think that their own experiments are not perfect, anyway, these are all experiments, as for the formulas of a large number of theories, let the Americans do it themselves. With this model, in exchange for a complete production line, it is possible to produce such engines in-house, and the most important purpose of Pakistan has been achieved.

"Yes, we at Grumman will also do our best to make this engine project possible as soon as possible." John also said, "However, can you export these technologies to Grumman?" ”

Everyone is selfish, and if Grumman obtains these stealth technologies, maybe Grumman can win the fourth-generation aircraft project in the United States. (To be continued......)