Yakovlev Yak-11

The Yakovlev Yak-11, given the NATO reporting name Moose, was an advanced trainer used by the Soviet Air Force and other Soviet-influenced air forces from 1947 until 1962. The Yakovlev bureau began work on it in mid-1944 as a trainer based on the Yak-3 fighter, though it was a low priority while the war continued, and the first prototype flew in late 1945. An improved prototype with revised cockpits and an engine on shock-absorbing mounts passed state testing in October 1946, and production began at Saratov and Leningrad in 1947. Powered by a Shvetsov ASh-21 radial engine of 700 hp, it served as the standard advanced trainer of the Soviet Air Forces and DOSAAF and was exported to eighteen countries. A version built in Czechoslovakia by Let was designated C-11.