Mikoyan-Gurevich I-270

The I-270, also written Zh under the bureau's own designation sequence, was a Soviet rocket-powered point-defence interceptor that the Mikoyan-Gurevich bureau built in answer to a Soviet Air Forces requirement of 1945. It was related to the earlier Korolyov RP-318 and the Bereznyak-Isayev BI-1, but it was considerably larger, with short reinforced wings and a raised T-tail, and it was powered by a Dushkin RD-2M-3V liquid-fuelled rocket engine. Gliding trials behind a Tupolev Tu-2 began in December 1946. Only two prototypes were built and both were wrecked in accidents, and with jet engines and surface-to-air missiles advancing the Air Force cancelled the project.