The Shvetsov ASh-21 is a seven-cylinder single-row air-cooled radial aero engine.
|Manufacturer||Shvetsov OKB-19 in Perm'|
|Developed from||Shvetsov ASh-82|
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.
Specifications (Shvetsov ASh-21)
- Type: Seven-cylinder, air-cooled, single-row, radial engine
- Bore: 155.5 mm (6.12 in)
- Stroke: 155 mm (6.10 in)
- Displacement: 20.6 L (1,257 cu in)
- Dry weight: 487 kg (1,074 lb)
- Supercharger: Single stage, single speed, geared centrifugal supercharger
- Fuel system: Carburetor
- Cooling system: Air
|Wikimedia Commons has media related to Shvetsov ASh-21.|
- 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.