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Walter Polaris

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This is an old revision of this page, as edited by Nimbus227 (talk | contribs) at 13:41, 19 January 2021 (Adding local short description: "1930s Czech piston aircraft engine", overriding Wikidata description "radial aircraft engine" (Shortdesc helper)). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Polaris
Walter Polaris
Type Radial aero engine
National origin Czechoslovakia
Manufacturer Walter Aircraft Engines

The Walter Polaris was a Czechoslovakian three-cylinder, air-cooled radial engine for powering light aircraft that was developed in the 1930s.[1]

Applications

Engines on display

A preserved example of the Walter Polaris engine is on display at the following museum:

Specifications (Polaris)

General characteristics

  • Type: 3-cylinder radial piston engine
  • Bore: 105 mm (4.13 in)
  • Stroke: 120 mm (4.72 in)
  • Displacement: 3.12 L (190 cu in)
  • Length: 708 mm (27.9 in)
  • Diameter: 926 mm (36.5 in)
  • Dry weight: 72 kg (159 lb)

Components

  • Valvetrain: One intake and one exhaust valve per cylinder
  • Fuel system: Carburettor
  • Fuel type: Petrol
  • Cooling system: Air-cooled

Performance

See also

Comparable engines

Related lists

References

Notes

  1. ^ Gunston 1989, p. 174.

Bibliography

  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9