Yakovlev Yak-20

The Yakovlev Yak-20 was an experimental piston-engined trainer developed in the Soviet Union in 1949 for aviation clubs, meant to be the cheapest modern aircraft that could serve as a pilot trainer and aerobatic sport aircraft. It was structurally like the Yak-18 but with a welded steel tube fuselage, aluminium alloy wings, side-by-side seating under a large sliding canopy and the newly developed 80 hp Ivchenko AI-10 five-cylinder radial engine. It was designed to be fully aerobatic with very high spin resistance. Two prototypes were flown by Anokhin and Georgii Shiyanov, but it did not go into production.