Yakovlev Yak-18

The Yakovlev Yak-18, with the NATO reporting name Max, is a tandem two-seat military primary trainer aircraft manufactured in the Soviet Union. Alexander Yakovlev started the design in May 1945 to replace the earlier Yakovlev UT-2 and Yak-5 in service with the Soviet Air Forces and DOSAAF, the voluntary society that trained civilian and military pilots. It was first powered by one 119 kW Shvetsov M-11FR-1 radial engine and entered service in 1946, and the later Yak-18A used a 300 hp Ivchenko AI-14RF radial. China produced it as the Nanchang CJ-5. An estimated 40 original aircraft survive worldwide, a few of them airworthy in the United States, Europe and China, and many air forces that once operated it have retired it.