In the era of third- and forth-generation aircraft, the aerodynamic layouts of fighters in various countries are very different, such as the light MiG-21, the MiG-23 with variable swept wings, the F-104 with short and thin wings t(hat can cut even vegetables), The F-4 that ditched the cannon, the slender Su-27, the handsome F-14, and the F-15 of Lida Flying Brick, the F-16 that looked perfect from any angle, and the angry super hornet F/A-18, the shape has its own characteristics.
However, in the era of the fifth generation aircraft, except for the Russian Su-57, Su-75, and China’s J-20, the designers of other aircraft seemed very similar spacially from the front view, and the products they came up with looked so much like the F22 and F35, such as South Korea’s KF-21, Turkey’s TF-X, India’s AMCA, and China’s FC-31, why is this?
First of all, due to the need for stealth, the space available for the aerodynamic layout of the fifth-generation aircraft is indeed very limited. The first condition for stealth fighters is to be invisible in appearance, and to achieve invisible appearance, the basic principle of parallel wing and fuselage edges must be followed. Since then, many good aerodynamic layouts will inevitably be limited, and F22 and F35 are currently The most balanced solution for the situation.