Walter Mars

1930s Czech piston aircraft engine
Mars
Walter Mars 14 M
Type Radial aero engine
National origin Czechoslovakia
Manufacturer Walter Aircraft Engines

The Walter Mars was a Czechoslovakian 14-cylinder, air-cooled radial engine for powering aircraft, a licensed built Gnome-Rhône 14M.[1]

Applications

  • Focke-Wulf Fw 189[2] Note. 204 of these airplanes were produced in the Aero Praha factory during the war.[3]

Engines on display

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

Specifications (Mars)

Data from Letectvi, 1937.[4]

General characteristics

  • Type: 14-cylinder two-row radial piston engine
  • Bore: 122 mm (4.8 in)
  • Stroke: 116 mm (4.6 in)
  • Displacement: 18.98 L (1,158 cu in)
  • Length: 1,282 mm (50.5 in)
  • Diameter: 964 mm (38.0 in)
  • Dry weight: 420 kg (930 lb)

Components

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

Performance

  • Power output: 700 hp (520 kW) at 3,030 rpm
  • Specific power: 27.3 KW/L
  • Compression ratio: 6.5:1
  • Power-to-weight ratio: 1.23 KW/Kg

See also

Related lists

References

Wikimedia Commons has media related to Walter Mars 14.
  1. ^ Gunston, Bill (1989). World Encyclopaedia of Aero Engines (2nd ed.). Cambridge, England: Patrick Stephens Limited. p. 174. ISBN 978-1-85260-163-8.
  2. ^ Bundesarchiv/Militärarchiv Freiburg, Produktionsprogramme (german)
  3. ^ Smith, J Richard; Kay, Anthony (1978) [1972], German Aircraft of the Second World War (third impression ed.),p. 172, London: Putnam & Co, ISBN 0-370-00024-2.
  4. ^ Letectvi 1937, Volume 17 (in Czech) Retrieved: 30 September 2019
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