The Mikoyan-Gurevich I-270 (Design Ж under Mikoyan-Gurevich's in-house designation sequence USAF designation Type 12) was a response to a Soviet Air Force requirement in 1945 for a rocket-powered interceptor aircraft for the point-defence role. In concept and basic configuration it was strongly reminiscent of the Soviet Bereznyak-Isayev BI-1 and is generally regarded as a further development of that design.
Made by Mikoyan.
It is the successor of the Messerschmitt Me 263 .