Even Qin Tao has forgotten when he said such words, but looking at the way Mr. Song looks now, it is obvious that he has kept his words in mind. Therefore, what has been tangled in Mr. Song's mind for most of the day today is this.

idea?

"Mr. Song, I am only engaged in warships. I am a layman when it comes to aircraft design. You are the professional aircraft designer, so you must not listen to me! We have always said that true knowledge comes from practice. Our duck

Whether the traditional layout will destroy the stealth effect, you have to test it before you know!"

Qin Tao was a little helpless. Mr. Song had been struggling here for a long time. Wouldn't he try it out?

"Even if it destroys the stealth performance, we can make up for it through design. The biggest advantage of the canard layout for us is that we can use the aerodynamic layout to make up for our shortcomings in the engine." Qin Tao continued to analyze: "You

What we are talking about is that to build a twin-engine heavy-duty air superiority fighter, we need to benchmark against the F-22. In the field of engines, we will not be able to reach the level of the United States for a long time. Therefore, we must adopt excellent aerodynamic layout.

To make up for it.”

Mr. Song nodded.

The canard layout brings advantages in maneuverability. If the engine is not powerful, it must be compensated by aerodynamics. This is also an important design idea for their J-10. Now, if they want to develop the next generation of air superiority fighters, they must also use this idea.

, after all, the biggest problem with the canard layout is the flight control, and they have already mastered these.

"Mr. Qin, why didn't you consider the canard layout of the vertical takeoff and landing fighter you designed?" Mr. Song asked Qin Tao.

Qin Tao smiled helplessly: "When our project was started, Project 10 had not yet made its first flight. Our aircraft is just an improvement on the Yak-141. How could it be completely different?"

.”

These are all reasons. How can the technical staff of their J-31A Design Department be as high as the staff of the 611 Institute? If they adopt a duck layout, their project will be delayed for at least five years.

He can't afford to wait. This kind of project will easily go bad if it is delayed for a long time, and the customer will lose patience.

Moreover, Qin Tao is targeting the mature F-35. He does not want to reinvent the wheel. Even the X-32 on the other side of the ocean started to use a delta wing layout, but in the end it changed back to a conventional aerodynamic layout?

What we have made is a moderate choice. Of course, this choice will inevitably lead to poor maneuverability. However, our own side has no intention of competing with enemy aircraft for maneuverability.

Mr. Song had already put down the burden in his heart, and a smile appeared on his face: "Mr. Qin, what you just meant is that you are optimistic about our project?"

"Yes, Mr. Song, our land is vast and we face many threats. Therefore, we must need dual-engine heavy-duty air superiority stealth fighters. I am optimistic about our 611 Research Institute and hope that we can fly advanced fourth-generation heavy-duty stealth fighters in the future.

.”

Mr. Song nodded: "Mr. Qin, thank you for your compliment. We will work hard. However, it is said that our brother units also have ideas."

Brother unit?

Seeing Qin Tao's confused eyes, Mr. Song explained: "Mr. Qin, during the last defense exhibition, didn't you and Su Huoyin Design Bureau come up with ideas for changing the stealth machine? The technical staff of the 601 Institute also listened.

Now, they are starting to think about whether they can develop a stealth heavy fighter based on the Su-27."

What?

Qin Tao was indeed a little shocked.

He indeed proposed this at the beginning. After all, this was the improvement idea for later generations of Da Mao's stealth machines. However, this is definitely not the best choice. This is just another evidence that Lao Maozi is resting on his laurels.

It is no longer possible for Lao Maozi to completely develop a brand new fighter jet. They can only tinker with the existing ones and flatten the Su-27 and use it as the Su-57. It is a lot of useless stuff.

The design was inherited, so Qin Tao would not like this imperfect design.

Moreover, what is more important is the design of Institute 601. It will take a long time for Institute 601 to fully understand the original design of the Su-27, and it will take a long time for them to improve it.

Therefore, Mr. Song does not have to worry about competition at all.

"Song Lao, even if your brother unit has an idea, I will still support you." Qin Tao said: "You have the best design team, and you will definitely be able to design the best fighter!"

Mr. Song nodded, his eyes full of expectation.

"I don't know anything else, but using the turbofan 15 as the intended engine should be the most suitable. Once the design unit understands the original design and makes improvements, the performance will definitely improve a lot." Qin Tao also began to introduce.

He said: "The heavy fighter has enough volume to design a large bomb bay. The main bomb bay must be able to mount six medium- and long-range air-to-air missiles, and the side bomb bays must be able to mount two short-range air-to-air missiles."

Although in the public display, the J-20 opened the belly bomb bay, which contained four air-to-air missiles, but if you look at the J-20 simulator, the positions of the weapons displayed are six medium-range missiles and

The mounting configuration of two short-range missiles requires at least eight missiles to go out and say hello to people.

In fact, the F-22 was originally equipped with four Aim-120 missiles. Later, part of the missile wings were cut off and six missiles were inserted.

If you want more, you can only hang it outside, which will destroy the stealth appearance. You will have to wait for the emergence of stealth-type missiles and stealth pylons in the future before you can hang it outside. By then, with the power of the fourth-generation aircraft,

Performance, hanging more than a dozen units is not a problem.

Now, with Qin Tao's introduction, Mr. Song's eyes are slowly brightening. Mr. Qin just said he was not familiar with airplanes, but now, he clearly looks very familiar!

This chapter is not over yet, please click on the next page to continue reading! Mr. Qin is really awesome!

After some chatting, the basic aerodynamic shape of the J-20 was actually revealed. The nose part is similar to the current J-31A, except that it is larger. The bomb bay is still under the air inlet, and two bomb bays are stuffed in the back.

It has two engines, and the twin vertical tails are tilted outward.

The appearance of this aircraft is definitely much more domineering than the current J-10. With the modified turbofan 15 as the engine, the power performance will reach a new level. In this way, this fighter can really compete with the F-10.

22 is a lot better.

"Mr. Qin, what do you think about the displacement nozzle of the aircraft?"

In a normal fighter plane, the nozzle is fixed, the engine can only blow air backwards, and the maneuverability of the fighter plane is completely accomplished by the rudder surface.

But the fourth generation machine is different.

The American F-22 uses a baffle. If you look at it from the back, its engine nozzle is not in the form of chrysanthemum petals, but has two movable baffles up and down. It can be adjusted through the baffles. It is quite simple.

But the efficiency is not high. This method can only change the direction of airflow up and down, also called a binary nozzle.

Although Lao Maozi does not yet have a fourth-generation machine, he already has an omnidirectional displacement nozzle. The structure of its circular nozzle is quite complex. It has more than a dozen action tubes, which drive a large number of scale-like things. When it shakes,

When the butt is lifted, the air jetted out can rotate in circles and spray in all directions. This type is also called a three-way nozzle.

If you compare performance, the latter is far better than the former. However, if you compare lifespan, it's a different situation. After doing so many tricks on the engine's hot flames, the lifespan is very low. Lao Maozi provided Ah San with

The Su-30mKI has this kind of nozzle. It is said that the lifespan is only fifteen hours. This is simply a scam. Even if you buy it, you don't dare to use it. It has to be used as a normal engine.

In fact, the vertical take-off and landing fighter jets currently under development have a nozzle that can rotate downward more than ninety degrees, which can be regarded as an alternative type of displacement nozzle.

How to rotate the displacement nozzle?

"It depends on our domestic research level." Qin Tao said: "Our duck layout is already very agile, so we can not use it for the time being. When the domestic scientific research level is reached in the future, a suitable displacement sprayer will be developed.

No matter what, we can put them on the aircraft again, and the flight control can also reserve these."

With the displacement nozzle, the maneuverability of the aircraft will be greatly improved, and the flight control will also need to be adjusted accordingly. Fortunately, we are now in the era of fly-by-wire flight control. If the previous hydraulic control was used, it would not be possible at all.

Complete the task of controlling so many rudder surfaces.

Qin Tao is an outsider, so of course he will not interfere with these specific details of the design. To what extent the domestic displacement nozzle technology has developed, what kind of displacement nozzle can be used accordingly? In the initial test flight, the ordinary one must have been used.

Nozzle.

"Mr. Qin, do you think our aircraft should be reserved for boarding on ships?" Mr. Song continued to ask.

Now it has something to do with Qin Tao. After all, he is a shipbuilder, and they are currently building aircraft carriers!

The carrier-based aircraft used on the aircraft carrier must first be the J-15, but this aircraft does not have stealth capabilities, so a stealth carrier-based fighter is definitely needed in the future.

So, should we consider it?

It is impossible for the J-10 to board the ship because it uses the belly air intake method. This method has the highest flight efficiency at large elevation angles, but it also faces the problem of insufficient strength. It is okay to take off normally, but it absolutely cannot withstand the carrier.

of impact.

Now this twin-engine stealth heavy fighter uses the same nose design and air intake method as the F-22. The front landing gear is also connected to the fuselage beam, so the strength is no problem, and you don’t have to worry about the aircraft being ejected.

It was dragged apart and fell apart.

So, can the J-20 be put on a warship?

This is the most controversial point among military fans in later generations.

Some people support it. After all, in later generations, the J-20 is the only domestic fourth-generation carrier-based aircraft. Although the J-15 has powerful performance, it has no stealth capability after all, so it is impossible to continue to serve for decades. Carrier-based aircraft in other countries are gradually moving towards

While entering the stealth era, the J-15 is slowly falling behind.

So, who is the replacement?

The J-20 has a strong voice, and it is felt that the domestically produced Black Ribbon must be put on the ship, so that it can be enjoyable.

There are also many objections. For example, some people say that the size of the J-20 is too big. This reason is actually untenable. The size of the J-20 is smaller than the J-15.

The J-15 has a total length of 22.28 meters, a wingspan of 15 meters, a maximum height of 5.9 meters, and a maximum take-off weight of 32.5 tons. The J-20 has a total length of 20.3 meters, a wingspan of 12.88 meters, a maximum height of 4.45 meters, and a maximum take-off weight of 39 tons.

As for the folding of the J-20's wings, it's not a big deal. The outer edge of the rear delta wing can be equipped with a special folding mechanism. Even if it is not folded, it can be placed alternately forward and backward like the French Rafale fighter.

to reduce the floor space.

The maximum take-off weight is a problem, but it’s not a big problem. With the powerful electromagnetic catapult, coupled with the advantages of the J-20’s engine and aerodynamic layout, it’s no problem to take off from the aircraft carrier. But if it lands, it’s impossible to go up to the sky and come back.

, after returning, the fuel consumption is almost the same, and the weight has dropped.

However, in later generations, the J-20 has almost never been seen on the ship. There are many problems in this. It is not that Chengdu Aircraft does not have this capability. The biggest problem is that the output of the J-20 is low. Even with the pulsating production line, every year

There were only thirty or forty aircraft. Later, in order to increase the production of J-20s, Chengfei handed over the production of J-10s directly to Guifei, specializing in the production of J-20s.

Before Qin Tao's time travel, domestic J-20s were only equipped with dozens to more than a hundred aircraft. For the huge air force, it was simply not enough and stretched. The air force was not satisfied, so how could it give it to them?

Used by the Navy.
To be continued...