Interceptor aircraft

An interceptor aircraft, or simply interceptor, is a type of fighter aircraft designed specifically for the defensive interception role against an attacking enemy aircraft, particularly bombers and reconnaissance aircraft. This role originally involved zero-notice, short missions from well-supplied ground bases against an approaching high-altitude target, necessitating readiness, climb rate, speed, maneuverability and short-range weapons capability over other factors in aircraft design. The role later evolved into a broader spectrum of missions favored by a general design emphasis around speed and climb rate.
Aircraft that are capable of being or are employed as both “standard” air superiority fighters and as interceptors are sometimes known as fighter-interceptors. In the post-World War II jet age, there are two general classes of interceptor: light fighters, designed for high performance over short range; and heavy fighters, which are intended to operate over longer ranges, in contested airspace and adverse meteorological conditions. While the second type was exemplified historically by specialized night fighter and all-weather interceptor designs, the integration of mid-air refueling, satellite navigation, on-board radar, and beyond visual range (BVR) missile systems since the 1960s has allowed most frontline fighter designs to fill the roles once reserved for specialized night/all-weather fighters.