Please list and compare the differences between J 10 and J 10.

1, the most intuitive, replaces the DSI inlet and the cumbersome and complicated adjustable inlet of J- 10, which reduces the weight and improves the overall flight performance to a certain extent compared with J- 10.

2. If the engine is changed, it will not be Taihang, nor the current AL3 1FN, but an improved version of AL3 1FN imported from Russia, otherwise the thrust will be insufficient.

3. The avionics have been continuously improved by replacing the new airborne phased array radar. In this regard, China has made great progress. The avionics architecture of J-20 is based on F35 of the United States, which has been verified in J- 10B.

4. Cancel the pitot tube and replace it with an atmospheric integrated sensor.

5. An electronic equipment cabin is added above the vertical tail, which has French style. Due to the change of vertical tail, some high-speed performance was sacrificed, and the vertical tail was modified.

6. The conformal fuel tank can be added, and the range can be greatly increased.

7. Increase all kinds of electronic warfare equipment, support more pods and enrich weapon systems.

8, optimize the fuselage mechanism, continue to increase the proportion of composite materials, reduce weight, improve life.

9. Some stealth technologies are used locally to verify the J-20.

That's all we can estimate now. In short, J- 10B embodies many fourth-generation aircraft technologies of the J-20, such as composite materials, phased array radar, advanced "Gemstone" avionics architecture, and local stealth coatings. These technologies have been verified by J- 10B, and all of them have been used in the J-20.

As for whether J 10B belongs to the fourth generation machine, this is a word game, depending on how you define the fourth generation machine. According to previous American standards, F22 is a typical fourth-generation aircraft, while J 10B is obviously at least half a generation behind, and can only be called 3.5 or 3.75 generations. According to the standards of the former Soviet Union and Russia, Su -27 is a typical fourth-generation machine, and then J- 10B can even make a fourth-generation machine, but it is still not a fifth-generation machine in the sense of F22. But now, Americans are becoming F22, and F35 is called the fifth generation machine, and the standards are unified. J-20 is a fifth-generation machine comparable to F22, while J- 10B is a fourth-generation modification. You can also call it 3.5 generation. Anyway, you should know that J- 10B is lower than J-20, F22, F35 and T50.

As for Zhang, he was fooled by the order. He just came out to spread the news. True or false. In 2009, he also said that we were not going to build the 4th generation aircraft, and now it's almost the first flight. If you believe what he said, you will be wrong this year. At present, the definition of the fourth generation machine or the fifth generation machine is different, which is very confusing. Many people who don't understand don't understand, so Zhang is good at fooling.