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The new F-20B is equipped with a thrust vector engine, and the F22 is not frustrated in close-range air combat! _high performance
Translated by google
2020-07-20 18:10
The J-20 needs a more advanced engine
As the most advanced air superiority fighter in my country and one of the most advanced fighters in the world, the J-20 has attracted a lot of attention since it entered service. The J-20 fighter uses a digital avionics system, active phased array radar, and a high-performance battlefield situational awareness system. It has also changed from the original AL31FM2 turbofan engine to the domestically produced WS10B one step at a time. Although the performance of the J-20 is good enough, there is always a problem, that is, whether it is AL31FM2 or WS10B, the performance of these two engines does not match the overall performance and positioning of the J-20 .
J-20 fighter
Both AL31FM2 and WS10B are very mature turbofan engines. These two aero engines are more than enough for any third-generation fighter, but they are placed on the fourth-generation F-20, which has higher requirements for flight performance. The technical indicators are slightly insufficient. Although the biggest advantage of the fourth-generation fighter is stealth, it still can't give up high mobility, so the J-20 actually urgently needs a better aviation engine to provide power.
AL-31 engine
Equipped with a new type of aircraft, the J-20 is in mass production
Recently, there are media reports: The J-20 equipped with a new engine has entered the mass production stage. The new batch of mass-produced J-20 is called the J-20B. The biggest difference from the previous version is that the J-20B will be equipped with two units with thrust vector function. The new engine. This can be said to be a long-awaited good news. If the J-20 is equipped with a more powerful engine, it will make up for the last shortcoming of this fighter and bring it to a complete state. It will also prepare for mass production. Preparation.
Imagination diagram of J-20 replacement with new engine
So what kind of engine will the F-20B use? There is a view that the J-20B still uses the AL31FM2 engine. If AL31FM2 is still used, the new batch of J-20 will not be called J-20B because the difference between the J-20A and J-20B represents a huge technology progress. Moreover, the news has clearly pointed out that the F-20B uses an engine with thrust vectoring function, which proves that the F-20B will naturally not be an AL31FM2 engine.
J-20 has used AL-31 and WS-10B successively
At the 2018 Zhuhai Air Show, a J-10B equipped with a domestic high-thrust vector engine performed a wonderful flight show, which was also the first appearance of a domestic thrust vector engine. Prior to this, the WS-15 was considered China’s first aeroengine with similar functions, but the appearance of this J-10B shows that in the field of thrust vectoring engines, we are not only the WS-15 as a choice, it also represents our country. Great progress made in the field of aviation development . Therefore, even if the J-20B is not WS-15, it must be a domestically-made new thrust vectoring engine.
F-10B equipped with thrust vector engine
What will the performance of the J-20B be improved?
The radar, avionics, and fire control systems currently used by the J-20 are all products under the latest domestic technology and have first-class performance. Therefore, the J-20B will not be improved in these areas, and the replacement of the aero engine will be its biggest change. . So what improvement will the performance of the F-20B using the new aviation development? Although the current air combat has entered an era dominated by over-the-horizon air combat, close-range air combat still exists, and the battlefield environment is complex and changeable, and beyond-visual range air combat cannot do everything.
J-20 fighter
Especially in the air combat between stealth aircraft, since each other has excellent stealth capabilities, no one can find each other at a long distance. The effect and function of the early warning aircraft at this time will also be halved. When the two sides discover each other, the air combat will also Pulled from long-range to close-range combat, in this case, whoever has stronger maneuverability will have a greater advantage.
J-20 production may speed up
The F-20’s radar detection range is farther than that of the F22, and the PL-15 has a longer range than the AIM120. Therefore, the F-20 will not lose the F22 at all in the air combat beyond the visual range, and it will even have an advantage. However, in close combat, it is equipped with F119. -The PW-100 thrust vector engine has a greater F22 advantage. After all, the maneuverability of fighter jets in close combat is particularly important. After the J-20 is replaced with a new thrust vectoring engine, it will bring a huge improvement in its maneuverability, making it completely uncomfortable even when facing the F22 at close range. And after solving the power problem, the production of J-20 may enter an accelerated phase .
