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-30MKK forced to pay even higher prices to buy the Su-35 or Su-37. Sukhoi Su-30MKK The Sukhoi Su-30MKK (NATO reporting name: Flanker-G) is a modification of the Sukhoi Su-30, incorporating advanced technology from the Sukhoi Su-35 variant. The Su-30MKK was developed by Sukhoi in 1997, as a result of a direct Request for tender between the Russian Federation and China. It is a heavy class, all-weather, long-range strike fighter, and like the Sukhoi Su-30, comparable to the American McDonnell Douglas F-15E Strike Eagle. Su-30MK2 is a further improvement to Su-30MKK with upgraded avionics and maritime strike capabilities. The MKK and MK2