Questions about the rumors of the Chinese fourth generation aircraft

The 5th generation is a Russian statement, and the United States also classifies the F22 and F35 as fifth-generation aircraft, and Lockheed Martin wrote F35 the 5th generation fighter

China still follows the American division method in the past, and the four generations in China are the five generations abroad.

What was once suspected has become true, but what is doubted now?

The 4th generation aircraft in the figure does not have the capabilities of the 4th generation 4th generation standards: high stealth, supersonic cruise, super maneuverability, and strong electronic warfare capabilities.

It could be a shape testing machine. It is conceivable that the design performance should be moderate stealth, supersonic capability, no thrust gauge, good maneuverability, acceptable electronic capabilities, and a bias towards opposing attacks.

Now our 4th generation is the 5th generation of Russia, and the United States is also named after the 4th generation.

2nd generation aircraft = J-X, 3rd generation aircraft = J-1x, 4th generation aircraft = J-2x J-10 and 4th generation aircraft started at the same time, not after the J-10 was built, the J-20 and others have no reason to announce, right?

Word limit.

Lockheed Martin's official website also defines the F-22 as 5 generations

It can only be said that there is finally a realization that China's demarcation method is out of touch with the wider demarcation method in the world. As far as I know, the division of the four generations is only in China. In the discussion of Wikip(囧)EDIA, it is also said that SAAB is also divided into 4 generations, but the standard is based on ** and avionics.

I haven't seen any specific ones.

The two-dimensional vector nozzle has too high material requirements, and the American F22 fighter is said to have a comprehensive life of only 250 hours, and the F-35, a simplified version of the F-22, will certainly not be used. F22 and F35 are both 4th generation fighters.

It definitely belongs, but China is now developing a fifth-generation fighter, which perfectly integrates F22 and T-50, and it has been exposed!

The F35 and F22 are both fourth-generation aircraft, but the former is a low-end product in the high-low combination. It is important to note that the "low-end" here refers to the cost and not to the technical side alone. The main reason for not installing a vector nozzle is the cost.

So far there is not a single one equipped with troops!

First of all, I am not an expert, and my mastery of military ** is also very pale, that is, I read it in magazines.

1. The fourth-generation aircraft we have seen and talked about are the same as aircraft carriers, which must have been reviewed by relevant departments to inspire the pride of the people and fool foreigners. There is an interesting saying: in the Soviet era, many ** were already equipped with troops, but the West did not understand it, and secrecy was done very well.

In the Russian era, some "new-style, latest technology" news was often thrown, but they were all in the experimental stage and eventually aborted or simply fake. This is because he also lacks enough confidence and doubts about his strategy. I really have hard goods in my hands, and I still show you something, everything that shows off is bottomless.

2. Thrust vectoring technology is high-tech, but not new technology. It should be built on a country's strong basic manufacturing industry and high-quality talents. At present, compared with other major countries, China's most fatal weakness is the basic manufacturing industry.

It can be designed, but it cannot be created, which is a shortcoming of China's national defense. At the end of the last century, a large number of China's basic manufacturing industries have been stagnant for various reasons, for a long time, washing machine liners are imported, now you say such a car brand, there are several car engines are completely domestic independent intellectual property rights, only two are. It's because our basic manufacturing industry is too backward.

At least 20 years behind the United States. The engines of the J-10, Thunder, and L-15 are all RD33 engines used in the directly purchased Russian MiG-29. The ARJ21 is also equipped with foreign engines, and when Chinese aircraft will be able to use their own engines, I think it will take at least 20 years, because the production line for manufacturing engines requires a certain amount of time to build.

If we can build the engine of the fourth-generation fighter, then it is impossible for the domestic large aircraft ARJ21 to spend foreign exchange to buy the engine of foreigners.

Question: To be honest, I'm not very familiar with these two technologies, but I don't think that China's fourth-generation aircraft will necessarily have this kind of technology. We're not that advanced yet.

One of the international standards for fourth-generation aircraft is that they can cruise at supersonic speed, if they can't cruise at supersonic speed, then stealth is worthless. Personally, I think that there are two weaknesses of Chinese aircraft at present, one is that the engine is not good, and it all depends on the purchase of foreign ones.

The other is that radar, electronics, and fire control technology are weak, which is basically the level of the United States in the 70s, and it would be good to catch up with the level of F16A. Don't look at a **, just think how powerful the fourth-generation aircraft is, and many real things we don't know.

1.It should be the official news, but it's only **, and the rest of the data has not been announced.

2.At present, only the United States and Russia have vector propulsion technology, and the gap between the United States and the United States for domestic engines is still very large, and even car engines cannot be built well, I don't believe that we can really have vector propulsion technology in 15 years.

3，4.These 2 questions are not easy to answer, because there is no test flight now, so Shenma are floating clouds, from the ** point of view, and T50 and F117 tail are different, do not rule out because of the power problem of the domestic engine, not that I am not patriotic, the domestic engine is too bad, of course, you can also say that the fourth generation aircraft really formed combat power It will take 15-20 years, we can wait for the engine technology to mature (F22 was established in 1971, and the combat effectiveness was formed in 2006), in addition, from the perspective of appearance, This aircraft does not belong to the pure air superiority aircraft of the F22, and is more inclined to ground missions.

I only hope that our country will do it in a down-to-earth manner, not rush for quick success, and always think of taking shortcuts, because this is a common disease of our nation.

J-10 leaked much earlier than this, and the Internet was still not so developed at that time. It's harder to spread than to leak. Now everyone has a mobile phone, and the mobile phone is a camera, and after shooting, it can be uploaded to the Internet casually. What can you do if the big ** keeps silent?

So far, I haven't seen a single domestic fighter using thrust vector control technology, how can the technology be solved? The United States played the F-15Active, F-16Vista, F-18HARV, X-31 to make the F-22. As a thrust vector control with combat value, it is impossible to rely on manpower, but to be integrated into flight control.

On top of this, there is also the problem of stealth, thrust loss, longevity, and to this day to meet all of them, only the nozzle of the F-22 is feasible.

If we talk about engines, the WS-10 is only used in place of the AL-31.

The full-motion control canard has appeared more than once on modern fighter jets, and it is different from the conventional layout trade-offs, and it has nothing to do with thrust. The EF2000 and the EJ200 are basically world-class thrust-to-weight ratios. In terms of flight control, the J-10 has long been used enough.

But it is certain that the control of the radar signature in the words of the canard wing will cause great trouble, as long as it is not larger than the main wing. In particular, the canard wing must constantly control input in flight to ensure the normal flight of the static and unstable aircraft.

As for the full-motion vertical tail, you have to understand that the plane is not a missile, and the control force of the four wings is the same. The steering maneuver of the aircraft is mainly a combination of roll and pitch, rather than the control of the yaw axis. There is no doubt that full motion will provide more yaw torque than with the rudder surface at the same size, and if you don't do it, then of course the RCS will be reduced somewhat.

But that's not the point, the biggest effect of a vertical tail for a fighter is to avoid sideslipping, especially at large angles of attack, which can lead to a spiral. The chopped short hanging tail threatens this function, and the pelvic fin is added without thrust vector control. Another problem is that if there is input, the relationship between the RCS effects may be reversed, and the increased corners of the pelvic fin are more lethal at many angles than the size of the hanging tail, and the stealth design is more difficult.

Ideally, this pelvic fin is a safety measure during flight testing, just in case, and it should be removed in mass production depending on the situation.

Thrust deflection is currently not a substitute for aerodynamic control, but conversely, the advantages of thrust deflection cannot be compensated for by improving aerodynamic design. Good aerodynamic design will indeed greatly improve maneuverability, but even the most powerful wing will stall at a 90-degree angle of attack, and it is useless to move without speed. And at high speeds, pneumatic control is also half the effort.

Thrust deflection is not only not affected by these factors, but even does not produce induced resistance, and is much less harmful to stealth than deflection control surfaces. The F-22 happens to be near-perfect on both fronts.

That's a fake picture with a computer-made special effect.

It has already been said that it is blown by foreign **, and what is blown by foreign ** is to blow the full-motion vertical tail to be so bossy, which is not in line with the theory at all.

Wait until you do, this doesn't count.

1, obviously acquiescing in the leak, a few ** who went to get the air police 2000 were arrested, and no one was arrested this time, so I don't know what to do.

2, if it is not vector push, then what do you think of the white chrysanthemum of Chiguo (al31 chrysanthemum is black with baked blue, WS chrysanthemum is shorter), F22 The reason why chrysanthemum is like that is that it should only use 2D vector push, which is technically simpler than 3D vector, F22 actually sacrifices part of the mobility.

3, that is obviously a full-motion tail, but obviously not a vertical tail, as for the side canard, which involves the problem of technical inertia, each country has its own technical research trend and direction, the appearance of the ecstasy duckling shows that this is indeed China's self-designed aircraft, because it has a technical undertaking with J10, the same thing T50 can also see the figure of the golden eagle, F22 also has a technical undertaking with its previous verification aircraft.

As for the advanced or backward technology, it is impossible to judge at present.

4. If the appearance of these structures to improve mobility means that the engine is poor, then does such a large body in turn indicate that the engine has excellent performance? It remains to be seen whether the engine is excellent or not, of course, the aircraft flew at such a short distance without afterburner, what do you say about the performance of this engine (Note: Al31 engine chrysanthemum is black with baked blue, WS chrysanthemum is shorter than J20 white chrysanthemum, and no matter which of these two engines is equipped with J10 to take off at such a short distance to drive afterburner, needless to say, ......）

ps: Seriously agree with ASD7226949, there are too many military blindness, it is recommended that LZ go to see what a vector engine is, don't look like a chrysanthemum like F22 is not a vector engine.

I'm not a professional now, I'm learning the aerodynamic principle of aircraft, the first one is not ruled out to be taken by the paparazzi, but the paparazzi should be deleted after being posted on the Internet, I think it should be officially released intentionally, there are many specific reasons, Gates came to China, arms sales to Taiwan....The second is no thrust vector, the domestic technology solution is theoretical, you can't understand it if you say too much professional, simply say that the third one you said in the early years of the design drawings also occasionally appeared, in this aircraft has been practiced, theoretically the maneuverability has been greatly improved, compared with J10 can be doubled, the fourth design scheme is designed abroad, and our country has little to do with it.