The Yakovlev Yak-18 is a tandem two-seat military primary trainer aircraft manufactured in the Soviet Union. Originally powered by one 119 kW (160 hp) Shvetsov M-11FR-1 radial piston engine, it entered service in 1946. It was also produced in China as the Nanchang CJ-5.
Yakovlev Yak-18
Aerobatic formation of Yak-18s
Soviet Yak-18PM single-seat aerobatic aircraft competing in the 1970 World Aerobatic Championship at RAF Hullavington, England, in 1970
Yak-18A
The Shvetsov M-11 is a five-cylinder air-cooled radial aircraft engine produced in the Soviet Union between 1923 and 1952.
Shvetsov M-11