Walter Polaris

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