Shvetsov ASh-21

The Shvetsov ASh-21 (Russian: Швецов АШ-21) is a seven-cylinder single-row air-cooled radial aero engine.

Design and development

The ASh-21 is basically a single-row version of the Shvetsov ASh-82. The ASh-21 also incorporates a number of parts from the ASh-62 radial engine. Design began in 1945, and by 1947 testing had finished and production had begun. Between 1947 and 1955 7,636 ASh-21 engines had been built in the USSR and beginning in 1952 it was produced in Czechoslovakia as the M-21.

Applications

• Beriev Be-8
• Beriev Be-30 (prototype)
• Yakovlev Yak-11
• Yakovlev Yak-16

References

• Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 175.
• Kotelnikov, Vladimir (2005). Russian Piston Aero Engines. Crowood Press Ltd. pp. 118–119.