Fifth-generation jet fighter

A fifth-generation jet fighter is a jet fighter classification used around the world that encompasses the most advanced jet fighter generation. The exact characteristics of fifth-generation jet fighters are controversial and vague, with Lockheed Martin defining them as having all-aspect stealth even when armed, low probability of intercept radar (LPIR), high-performance airframes, advanced avionics features, and highly integrated computer systems capable of networking with other elements within the battlespace for situation awareness.

Currently, the only combat-ready fifth-generation fighters are the Lockheed Martin F-22 Raptor, which entered service with the United States Air Force in 2005; the Lockheed Martin F-35B Lightning II, which entered service with the United States Marine Corps in 2015; and the Lockheed Martin F-35A Lightning II, which entered service with the United States Air Force in 2016. The Lockheed Martin F-35C Lightning II, Sukhoi PAK FA, HAL AMCA, TAI TFX, Chengdu J-20, Shenyang J-31, and Mitsubishi X-2 Shinshin are currently under various stages of testing and development.