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Shvetsov ASh-21

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ASh-21
Type

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This page is a soft redirect. Radial engine #REDIRECTmw:Help:Magic words#Other
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Manufacturer

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This page is a soft redirect. Shvetsov OKB-19 in Perm' #REDIRECTmw:Help:Magic words#Other
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First run

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This page is a soft redirect. 1945 #REDIRECTmw:Help:Magic words#Other
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Number built

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This page is a soft redirect. 7,636 #REDIRECTmw:Help:Magic words#Other
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Developed from

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This page is a soft redirect. Shvetsov ASh-82 #REDIRECTmw:Help:Magic words#Other
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The Shvetsov ASh-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 as well. 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

Specifications (Shvetsov ASh-21)

File:Shvetsov.jpg
Family tree of Shvetsov engines

General characteristics

  • Type: 7-cylinder, air-cooled, single-row, radial engine
  • Bore: 155.5mm (6.12in)
  • Stroke: 155mm (6.10in)
  • Displacement: 20.6 Liters (1,257 cu in)
  • Dry weight: 487kg (1,074lb)

Components

  • Supercharger: Single stage, single speed, geared centrifugal supercharger
  • Fuel system: Carburetor
  • Cooling system: Air

Performance

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.