The author solemnly declares that the photos of the suspected test flight of the new domestic J-20 aircraft in this article are from the Internet head platform, and the source of the photos can be traced, and there is no leakage. I would like to appeal to the majority of netizens to remain rational and restrained in relation to such sensitive information, and to avoid unsubstantiated speculation, excessive interpretation and dissemination.
Recently, with the successful development of our new generation turbofan-15 engine and the news that it has begun to be tested on our J-20 aircraft, the improvement of our technical level in aero engines and fighter aircraft has also become a topic of conversation among many people, and at the same time, the US and Western media have also begun to express their "views" on this.
Many people in the US and Western media have compared our turbofan-15 engine with the F199-PW-100 engine of the United States 30 years ago, and put forward a key point, that is, the technical level of our turbofan-15 engine is comparable to that of the American engine in the past 30 years, and they have come to the conclusion that we are still 30 years behind the United States in the field of aviation development.
For this statement, the evaluation of many domestic netizens can be said to hit the nail on the head: the turbofan-15 engine is indeed not much different from the F199 engine in the United States thirty years ago, and it can be said that it is at the same level. However, the problem is that the United States has also not made any breakthroughs in the field of engines in the past 30 years, and it is not too much to say that it is still at the level of 30 years ago.
From the data alone, the maximum thrust of the turbofan-15 engine is 18 tons, the maximum thrust of the F119 engine is 17.5 tons, and the bypass ratio is 0.25 and 0.36 respectively.
After the F199, the United States did introduce some new engines, such as some improved F199-PW-200 after the F199, and the F135, which is the most outstanding engine in the United States today. But in essence, these engines are based on the F199 with some minor modifications, although the performance has been improved, but the actual technical level has not improved much, so in essence, it still belongs to the same generation of engines, but the performance is better.
As for the new generation of engines in the United States, that is, the XA100 and XA101 variable-cycle engines currently under development, they belong to the sixth generation of engines, which are actually still in the research and development stage, and even more are still in the exploration stage after the theory is proposed.
The most important thing is that we started relatively late in the field of aero engines, but we have the advantage of being a latecomer, and the development in the field of related technologies can be said to be very rapid, and the breakthrough from 0 to 1 is developing to the current technical level, and it can be said that we have completed decades of technological progress in the United States and Western countries in just ten or twenty years. From this speed of development, it is not difficult to see that our domestic aviation development is performing better and better, and at the same time, it is narrowing the technological gap with the United States and the West.
What's more, for fighter jets, aviation development is only one of the influencing factors, and there are many other technologies that will also influence. Judging from the current news, we are equipped with a full version of the turbofan 15 J-20 aircraft, which can be called the fastest fifth-generation aircraft in the world today, and some pilots even said that the fastest flight speed can exceed the speed of sound during the test piloting process.
At the same time, our J-20 aircraft also has a lot of advantages in information systems, which can better cope with various situations and have better performance in actual use.
There is no doubt that we have embarked on the "highway" of development in the fields of domestic fighter jets and aviation development, and various technologies have continuously achieved breakthroughs, and have very excellent performance parameters in many fields, and even some fields have been called the world's leading level. The most important thing is that we are still accelerating breakthroughs in related fields, and I believe that we will definitely achieve better results in the future.
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