Combat aviation of the USSR: Su-27. VDNKh park (Moscow). The Sukhoi Su-27 (Russian: Сухой Су-27; NATO classification: Flanker) is a twin-engine supermaneuverable fighter aircraft designed by Sukhoi. 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. First flight – 1977.