"!" Yang Wei's throat was a little dry.

If this is the case, it is reasonable for the other party to buy them with such a meal.

Although he was moved by what Xie Kai said, building the world's most advanced fighter is something that every fighter designer dreams of, but they don't know anything about it.

"Isn't this thing that we have no foundation? How do we start? What is the connection with the four degrees of redundancy?" the middle-aged man asked.

Xie Kai felt that this middle-aged man was very sensible.

I asked this person's name first, his name was Qiao Ping'an, a name that Xie Kai had never heard of.

Xie Kai racked his brains and couldn't figure out who was surnamed Qiao among the famous masters in the domestic aviation system, so he had to give up in the end.

"According to what I've learned, it's a new, epoch-making fighter that's different from traditional fighters. The biggest feature is the use of a new generation of aero engines and the full application of low detectability technology, and has high maneuverability, advanced avionics system, highly integrated computer network, excellent battlefield situation perception and information fusion capabilities. Xie Kai doesn't hide his secrets.

"So, you have been promoting the informatization of various weapons and equipment?" Zheng Yucheng was speechless. "Whether it's tanks or missiles, they're trying to improve the use of computers, that's what they're trying to do?"

Xie Kai stuffed a steamed elbow in his mouth, and he didn't have time to speak, but he nodded.

The weapons and equipment in the base, in terms of informatization, are the highest in the country.

In order to get advanced chips, 404 began to plan the chip industry almost at the earliest time, and now, although there is only one 68000, there is a big gap compared to the world's most advanced chips, at least, it is also considered domestic.

Just lay the groundwork.

Zheng Yucheng never thought that Xie Kai's real purpose was this.

From the very beginning of the game console, 404 generation processing and production substrates, domestic production can not obtain chips from Intel and other companies, 404 can only seek its own production, and now the 691 factory can already provide high-performance chips to all scientific research units in the country, but the technology is not the top in the world.

"You're making games for this?" asked Zheng Yucheng.

Xie Kai glanced at him, swallowed the meat in his mouth, and then said, "Now is the right time to talk about this?"

Zheng Yucheng kept silent.

Yang Wei and the others are now beginning to be curious about Xie Kai's true identity.

But I can't ask.

Even Zheng Yucheng has no temper in front of him, Xie Kai scolds Zheng Yucheng, it is absolutely the norm, the relationship between the old and the young is too confusing.

"Let's talk about this new fighter. According to the different standards of the United States and the Soviet Union, the Americans are divided into three generations, and the representatives of the third-generation fighters are the F-14, F-15, F-16, etc....... As for stealth fighters, both countries belong to the next generation. Our domestic No. 10 project belongs to the third generation of the United States and the fourth generation of the Soviet Union......" Xie Kai did not introduce what the fighters use as a standard to divide the generation difference.

In this era, there is no such strict distinction between generations and technologies as a matter of technology.

"Why don't we continue to talk in another place?" Zheng Yucheng asked when he saw that everyone could hear it and eat about the same food.

Yang Wei and others are interested, so naturally they can't ask for it.

Xie Kai had thoroughly piqued their interest.

As for what the four redundant degrees have to do with the stealth fighter, it is already very clear just from Xie Kai's previous introduction of the characteristics of the fighter they are about to start making.

The more advanced the fighter, the higher the requirements for the flight control system.

On the surface, what they are studying is only the flight control system, but in fact it is the integration of the entire system, involving the various systems of the fighter.

Otherwise, the fly-by-wire flight control system with four redundant degrees will not be related to the overall design success or failure of advanced fighters.

A large part of the defects of the MiG-29 are due to the poor flight control system.

Even the unsuccess of the Soviet stealth fighter is related to the poor technology of the flight control system.

The more advanced the fighter, the more complex the aerodynamic layout and the higher the requirements for maneuverability.

Many of the Soviet fighters had mechanical control systems, which were exhausting to operate. FORTUNATELY, THE MIG-29 IS KNOWN AS A SMALL SHORT LEG, IF IT HAS A COMBAT RADIUS AS LARGE AS THE TU-22......

The group moved to a small conference room in the hotel.

There is a blackboard provided by the hotel for meetings.

Xie Kai wrote on the blackboard the characteristics of the stealth fighter 4S.

These four can summarize the technical performance and indicators of the new generation of fighters. Stealth fighters are not required to be completely invisible, but to use more advanced shape design, coating materials that can absorb electromagnetic waves, composite materials, etc. to reduce the reflective cross-section...... "Xie Kai introduced the stealth fighter according to what he knew and understood.

Yang Wei once served as the chief designer of the J-20, solving the conflict between the stealth characteristics and air combat performance of the J-20, so that the J-20 was successfully equipped with troops.

Now what he needs to do is to let Yang Wei start planning stealth fighters in advance, and maybe by the time he enters the 21st century, China's stealth fighters will be able to complete the design and manufacture.

Under such circumstances, it is entirely possible for the pilot to fly this plane to the airspace above the motherland's maritime frontier to frighten and frighten the arrogant pilots of the US imperialists.

"Stealth, supersonic cruise capability, super-maneuverable ability, and super information superiority need to strike a balance between the four in order to make the comprehensive performance of the fighter stronger. Stealth is just one of them, and this needs to ......be achieved by relying on new composite materials with low electromagnetic wave reflection, small reflection cross section, coating that can absorb radar electromagnetic waves, and even a design that reduces infrared characteristics."

"Is it possible to be visually invisible? It is impossible at close range, but what if it is at a distance? If a fighter has such a capability, wouldn't it be dangerous for a conventional fighter to fly a few kilometers in front of it to launch a missile?" Qiao Ping'an asked Xie Kai.

If stealth can be achieved to such a degree, the aerial combat of fighters will become simpler.

"It can only be said that it is not impossible. The Soviet MiG-37 project, the Soviet high-level has proposed to add a visual stealth technology, and the Mikoyan Design Bureau has also worked hard, the plan is to add projectors and other equipment under the wings and nose radome, which can project various colors on the aircraft to create visual deception, so as to achieve the function of invisibility to the naked eye......," Xie Kai said.

This kind of function, in fact, later proved to be very weak in the case of more and more advanced radar detection technology.

Stealth fighters hardly need to engage in close-range aerial combat like ordinary fighter jets.

"It's just that this kind of technology doesn't have much effect. The range that can be seen by the naked eye is very close, and it is the core to prevent detection by radar. Xie Kai said with a smile. "After all, the design of fighter jets in various countries is now advocating out-of-sight combat. The two sides are tens or even hundreds of kilometers apart, and the radar detects the enemy, locks on the target, drops missiles, and then hits and runs......"

"This also raises the problem that if the weapon is external, it can be easily detected by radar. This requires the design of the built-in magazine......"

Qiao Ping'an was not unhappy because he was refuted by Xie Kai.

"We don't have an engine, how can we solve it?" Lu Yuanyuan asked Xie Kai.

Everyone's heads poured a basin of cold water on the subject.

The boiling hot blood cooled down.

Everyone knows that the problem of aero engines is a headache for all aircraft designers.

It's useless to design it, and without a powerful engine, it can't fly at all.

"The problem of the engine must be considered, and now we are preparing two directions, one is that we independently develop engines with large thrust-to-weight ratios, which is the reason why Dongfeng Power Plant was integrated by us; on the other hand, it is to seek imports from the Soviet Union, and the Soviet Union is now having problems in the domestic economy, as long as enough money is given, it is estimated that nuclear bombs can be sold!" Xie Kai said with a smile.

Anyone could see the reluctance in his smile.

"You don't have to worry about this problem, the overall design has not come out! Besides, from verification to design, to manufacturing model blowing tunnels, to manufacturing prototypes, it doesn't take more than ten years, and you can't figure it out, right?" Huo Haiyuan also very much hopes that he will participate in such an advanced fighter.

Zheng Yucheng and Xie Kai dug him at the beginning, if he said this, he would not hesitate at all.

"Pneumatic layout, I got two from the Soviet side, the United States side just heard some information, this is not going to talk about it for the time being, after all, the project has not yet started, and the Super Seven project has not ended......" Xie Kai's words made people want to kill him.

But everyone knows that greed can't chew too much.

Even a fighter with not too advanced performance has not been figured out, and the flight control system of Super Seven has not been completed, not to mention the more advanced flight control system required by more complex stealth fighters.

"What is the specific situation, you can introduce it to us, you don't need to go into detail, it's probably enough. Lu Yuanyuan said to Xie Kai with a pleading face.

Without waiting for Xie Kai's introduction, Yang Wei introduced Lu Yuanyuan as a researcher in the structural design office, and Xie Kai knew why she asked this question.

In desperation, he directly drew the shape and structure of the J-20 on the blackboard.

Even if it was just a simple sketch, the female technician's eyes lit up and she took out the small notebook and pen she carried with her, and recorded it.

I also wrote down the aerodynamic layout that Xie Kai said, and when I have time, I can study it, right?

Everything, decades later, is everywhere on the web.

But in this era, without the Internet, these things are highly confidential in various countries, and they will not be disclosed to the public at all.

The first stealth attack aircraft, the F-117A, has been in service for several years and has not yet been made public.

Not many people in the whole world know about this thing.