Chapter 421: Stealth Plane

"Our model, okay?" Watching the American leave, the man sitting in the back chair, Ammod, a technician from the Aviation Industries Corporation of Pakistan, asked the engineer Hills next to him.

They are from the Pakistan Aviation Industry Corporation, now, Pakistan's aviation industry has just started, in the past, it was just a J-6 overhaul plant, now, to be able to repair F100 engines, to be able to repair Tomcat fighters, A-7 fighters, is already their limit, although they are also working with other countries, such as with Swedish technicians to develop Gripen, with South African personnel to develop carvers, with Chinese personnel to develop new fighters, but more, Pakistan's own aviation industry is not yet able to take on the heavy task of designing an aircraft during the period of observation and learning.

At such times, the Pakistani aviation industry brought a model, which at the Farnboro air show, was not noticeable at all, and this model was not really studied by them, but was made by President Mahmad for several days.

President Mhammad gave them a complete explanation of the advantages of this model, giving them the illusion that President Mhammad was an experienced aircraft designer, and he was also very pioneering, and many of the statements were unheard of. Now, with this model, they want to bring this design of their own to the world, and for the time being, no one seems to be interested.

It's been a long time, and no one has come at all, except for a reporter who came here to take a photo.

It seems that this time it is going to be fruitless.

The whole morning passed like this, when next to the exhibition stand. While calmly eating the lunch he had brought, suddenly a large crowd of people gathered around.

These people are Americans, and in their eyes, there is simply a blazing flame. Looking at your own model is like seeing a lover.

"How did you get this model?" The leading one, looking at his age is already in his fifties, should be a senior technician, and the other party's words are trembling with a hint of weakness.

Well, finally someone has taken the bait! Looking at the Americans, Shears said, "This is our own design." ”

Self-designed? The American on the other side said, "How did you come up with this kind of flying machine?" What is its design philosophy? ”

"Stealth performance, now, radar has become an important means of detecting aircraft, our fighter, is to stealth in front of the radar, so that the other party can not detect us, we expect. With this stealth means of their own, they can make a bomber the size of the B-52. The radar reflection area is about the size of a ping-pong ball. Shears continued.

The other man's eyes widened, as if he didn't believe what Hills said.

"How did you do that?" The other party asked.

"We have our own specialized electromagnetic laboratory, in which we design various shapes to detect reflections on radar waves, such as our aircraft. No matter what direction the other party's radar wave comes from, it can always be reflected in other directions, and it cannot be returned to the original radar receiver. We have developed a special coating, which can absorb radar waves in the microwave band, reflect and absorb, which can greatly reduce the probability of being detected by radar and improve our stealth performance. We also employ computer-aided design to help us determine a more appropriate shape. ”

Stealth performance! In this era, stealth is still a technical standard set by the US military itself for follow-up fighters, and in the world, it has not been promoted, there is no market, and most aircraft designers think that this is something that only exists in science fiction.

Only the United States, knowing the impact of stealth performance on future air combat, spared no effort to develop various stealth aircraft, and now, the first stealth attack aircraft, the F-117, has entered active service in the United States.

The Americans began to study these technologies in the seventies, and in the early eighties, the first stealth product, the F-117 was finalized in the Skunk Factory of Lockheed and equipped with the US Air Force, which has been in a state of extreme secrecy, it will not even fly during the day, every flight is at night, and even the training of pilots is carried out at night, with the highest level of secrecy, until 88 years, the United States did not publish photos of the F-117.

Now, no one in the world except the United States knows about the existence of stealth aircraft, let alone anyone who can design stealth aircraft, and they simply cannot get rid of the inherent image in their minds.

And now, Pakistani technicians have actually created a model of a stealth aircraft, and the model of this stealth aircraft is very similar to Northrop's advanced tactical bomber, that is, the later B-2, and even more perfect than their aircraft!

Northrop's aircraft has also been designed for ten years, and it was originally a flying wing layout, but it had a vertical tail, and it was not until later that it was improved to no vertical tail, which could reduce the radar reflection area.

At the beginning, the tail of the wing was a pointed triangle, which later became a W-shape, which was the result of several calculations.

And now, this model of the other side is a large flying wing, the tail part is a W-shaped structure, the middle part is the crew compartment, the equipment compartment, and the engine intake duct is above.

Seeing each other's models, how can you not interest American technicians? These people who came this time are the team led by Fred, vice president of Northrop, who came here mainly to sell the company's F-20 fighter to the world, which was developed by the company at its own expense, and was originally intended to replace the F-5 fighter, but unfortunately, it touched a nose of dust, and no country was willing to equip it.

Unexpectedly, I actually saw such a fighter here, which coincided with the stealth aircraft developed by my own side!

Was it plagiarized by the other party? When pigs fly! For this project, Northrop bought an idle factory of Ford Motor Company in the Biclafra area of Los Angeles to develop this stealth bomber, this factory has no windows, this base is under 24-hour surveillance by the military and security personnel, and these security measures to prevent leaks alone cost 2 billion US dollars. The computer rooms here are surrounded by metal plates to prevent electromagnetic radiation. Workers in key positions are even tested with a lie detector.

In the case of Fred himself, a few years ago, before he was approved to participate in the plan for such a fighter, his Canadian wife actually needed to change her nationality and become a U.S. citizen. Even in Congress, only eight members of parliament know about it.

This kind of aircraft is absolutely impossible to leak, and Northrop has finally determined the current shape after years of research and exploration, which is actually the same as the appearance of the stealth aircraft in front of him, how can this not surprise Fred.

This should have been independently researched by the other side, and the establishment of an electromagnetic laboratory, the design of such aircraft, the application of stealth coatings, and the use of computer-aided design were all processes carried out by Northrop.

I really didn't expect that Pakistan's aviation industry would develop so fast! Although they are still very backward in many aspects, such as the most important engine, they cannot produce their own, but if they spend a lot of effort on a certain aspect, it is still possible to achieve a breakthrough, such as the current stealth design! At a time when no other country attaches great importance to stealth performance, they have actually made such progress!

Fred also has a faint sense of loss, now, his own stealth bomber, is still a secret project, and after many years have passed, the project is declassified, and the outside world looks at it, and thinks that his company is copying Pakistan's design, after all, the appearance is announced first.

"So how do you solve the control problem of the aircraft, for example, how to steer without the vertical tail?" Fred continued.

"Behind us, each is designed with four speedbrake rudders, two stacked together, there is a hinge in front, which can be expanded up and down, when the left side is fully expanded, it is equivalent to the left rudder, and so on, when only the bottom is extended, it is the pressure operating lever." "You have to use fly-by-wire to be able to control, it's not very maneuverable, our fighter is just a bomber, and at the same time, we have another plan to improve our Tomcat fighter and make it have strong stealth performance," Shears said. ”

What Shears said is a problem that has plagued Northrop for a long time, without the tail, how to control the steering of the fighter, when Fred joined the team, the idea of the rudder of this speed brake was put forward by him, and now, the other party actually said it very easily!

They have obviously thought all the problems in place, but due to Pakistan's limited technology, they can only stay on the design drawings at most, and it is not easy to actually make them!

"Can you share these designs with us?" "I'm Fred, vice president of Northrop, and I'm very interested in your designs. ”

The two sides came up with the same goal, and finally designed a similar flying machine, proving that the Pakistani airline still had a few brushes, and Fred issued a sincere invitation. (To be continued......)