What is the classification standard for fighters?

The first generation fighters were subsonic fighters, adopting rear-end tactics and mainly attacking with machine guns.

The second generation fighter is a supersonic fighter, which uses high-altitude and high-speed interception operations and mainly attacks missiles. The third generation fighter is a supersonic fighter, which intercepts and attacks long-range under the condition of nuclear war and mainly attacks missiles.

The fourth generation fighter is a supersonic fighter, which combines high-altitude high-speed and low-altitude maneuvering, and mainly attacks by missiles.

The fifth generation fighter is a stealth, supersonic cruise fighter, which is a fighter that makes hidden contact with the enemy and carries out post-stall maneuvers and missile-based attacks.

The fighter generation is closely related to the technology it adopts, according to the division method of the United States. The first generation of aircraft is typical of swept wing, centrifugal jet power, visual search and artillery machine gun attack; The second-generation aircraft adopts delta wings or step wings, reaching twice the speed of sound, realizing high-altitude, high-speed and axial-flow jet power, taking radar combined with visual search and missile attack as a typical example; The third generation aircraft introduces turbulence technology and adopts strake wings (the main wing is an improved delta wing or swept wing), which reaches twice the speed of sound and has good maneuverability. Jet power with high thrust-to-weight ratio is a typical example of radar combined with infrared or TV search and missile attack. The fourth generation aircraft introduces stealth, supersonic maneuvering and post-stall maneuvering technologies, and the jet power with high thrust-to-weight ratio is typical radar combined with infrared or TV search and missile attack;