Farman_12We

Farman 12We

Farman 12We

1920s French piston aircraft engine


The Farman 12We was a French 12-cylinder broad arrow configuration aircraft engine that was designed and built by Farman in the early 1920s. Power output was 370  kilowatts (500 hp).

Quick Facts 12We, Type ...

Design and development

The Farman company developed and produced aero engines from 1915; the 12We was the company's most produced engine. Following the cylinder layout of the Napier Lion this engine featured three banks of four cylinders and employed water cooling.[1]

The 12We was first flown in a Farman F.60 Goliath in October 1922 and later set a distance record powering a Farman F.62 in 1924, the engine ran continuously for 38 hours.[2]

Variants

12Wers
with 0.5:1 reduction gear and KP24 supercharger.

Applications

Farman F.60 Goliath in 1929

Engines on display

Preserved Farman 12We engines are on static display at the following museums:

Specifications)

Right side view of the 12 We engine on display at the Deutsches Museum Flugwerft Schleissheim

Data from Gunston.[1]

General characteristics

  • Type: 12-cylinder water-cooled W-block (3 banks of 4 cylinders) aircraft piston engine
  • Bore: 130 mm (5.1 in)
  • Stroke: 160 mm (6.3 in)
  • Displacement: 25.48 L (1,555 cu in)
  • Dry weight: 470 kg (1,036 lb)

Components

  • Valvetrain: Overhead valve
  • Cooling system: Water-cooled

Performance

  • Power output: 373 kW (500 hp) at 2,150 rpm

See also

Comparable engines

Related lists


References

Notes

  1. Gunston 1989, p. 56.
  2. Gunston 1989, p. 57.

Bibliography

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

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