The Su-30 is a two-seat, dual-role fighter for all-weather, air-to-air and air-to-surface deep interdiction missions. There are several related developments of the Su-27 design.

The primary role was long range air defence against American SAC B-1B and B-52G/H bombers, protecting the Soviet coast from aircraft carriers and flying long range fighter escort for Soviet heavy bombers such as the Tu-95 'Bear', Tu-22M 'Backfire' and Tu-160 'Blackjack'. The Su-27 entered service with the Soviet Air Forces in 1985. It was designed with the Mikoyan MiG-29 as its complement.

The Su-27 was designed for air superiority missions, and subsequent variants are able to perform almost all aerial warfare operations. It was intended as a direct competitor for the large United States fourth-generation fighters such as the Grumman F-14 Tomcat and F-15 Eagle, with 3,530-kilometre (1,910 nmi) range, heavy aircraft ordnance, sophisticated avionics and high maneuverability. The Sukhoi Su-27 ( Russian: Сухой Су-27 NATO reporting name: Flanker) is a Soviet-origin twin-engine supermaneuverable fighter aircraft designed by Sukhoi. Multirole fighter, air superiority fighter

For the PC game, see Su-27 Flanker (video game).

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