Russian culture jet Tupolev Tu-144 by Alexei Tupolev, MiG fighter aircraft series by Artem Mikoyan and Mikhail Gurevich, and Su series by Pavel Sukhoi and his followers. MiG-15 is the world's most produced jet aircraft in history, while MiG-21 is most produced supersonic aircraft. During World War II era Bereznyak-Isayev BI-1 was introduced as the first rocket-powered fighter aircraft, and Ilyushin Il-2 bomber became the most produced military aircraft in history. Polikarpov Po-2 "Kukuruznik" is the world's most produced biplane, and Mil Mi-8 is the most produced helicopter. Famous Russian battle tanks include T-34, the best tank design of World War II,
Sukhoi Su-17 Sukhoi Su-17 The Sukhoi Su-17 (NATO reporting name: Fitter) is a Soviet variable-sweep wing fighter-bomber developed from the Sukhoi Su-7. It enjoyed a long career in Soviet, later Russian, service and was widely exported to Eastern Bloc, Arab air forces, Angola and Peru as the Su-20 and Su-22. It is the first variable-sweep wing of Russian/Soviet origin. Seeking to improve low-speed and take-off/landing performance of the Su-7B fighter-bomber, in 1963 the Sukhoi OKB with input from TsAGI created a variable-sweep wing technology demonstrator. The Su-7IG (internal designation S-22I, NATO designation "Fitter-B"), converted from a production Su-7BM, had fixed inner portions