明太祖朱元璋 Profile picture
山河奄有中华地,日月重开大统天。 炎黄子孙都应该以恢复汉唐明的华夏荣光为使命.
Aug 22, 2021 16 tweets 15 min read
What is stealth technology?The first step of stealth technology is that it must conform to the principle of parallel design,In order to reflect electromagnetic waves in another direction,This is only the first step in stealth technology. #Aircraft #Fighter #F22 #F35 #J20 ImageImageImageImage The second step of stealth design is to design the edge and transverse gap of the wing in zigzag shape, and use radar wave absorbing materials.This is to deal with the diffraction phenomenon of radar waves.Only su57 has no such design. ImageImageImageImage
Aug 13, 2021 7 tweets 5 min read
Before, we explained the defects of the stealth capability of su57 in detail. Now, let's talk about another defect of su57, that is, the internal weapon rack.The aerodynamic shape of Central lifting body is a classic work of Sukhoi Company.But the problem lies in it. #F22 #F35 The layout of the central lifting body turns the groove in the middle of the engine into wings, which increases the lift of the fighter.However, the air pressure in this area is very high, and su34 once had the phenomenon that missiles hit its own airframe.