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From Wikipedia, the free encyclopedia

Fiat A-12.jpg
Preserved Fiat A.12 engine
Type Piston engine
Manufacturer Fiat
Number built 13,260
Developed from Fiat A.10

The Fiat A.12 was a six-cylinder liquid-cooled in-line engine with a bore of 160 mm and a stroke of 180 mm, giving a capacity of just under 22 liters, with variants producing between 245 and 300 horsepower at 1,700 rpm. The A.12 was a rather large aero engine at the time, but it was efficient and reliable. A total of 13,260 A.12s were produced between 1916 and 1919.




Engines on display

Specifications (A.12)

Side view of the Fiat A.12 shown at the Research & Development Gallery, National Museum of the USAF.
Side view of the Fiat A.12 shown at the Research & Development Gallery, National Museum of the USAF.

Data from[citation needed]

General characteristics

  • Type: 6-cylinder liquid-cooled inline engine.
  • Bore: 160 mm (6.30 in)
  • Stroke: 180 mm (7.09 in)
  • Displacement: 21.71 L (1,325.1 cu in)
  • Length: 1,780 mm (70 in)
  • Width: 560 mm (22 in)
  • Height: 1,130 mm (44.5 in)
  • Dry weight: 415 kg (915 lb)


  • Fuel system: Carburetor
  • Fuel type: octane
  • Cooling system: Liquid


  • Power output: 245 hp at 1,700 rpm

See also

Comparable engines

Related lists


  • Gunston, Bill. (1986). World Encyclopaedia of Aero Engines. Patrick Stephens: Wellingborough. p. 62
  • Hirschauer, Louis; Dollfus, Charles, eds. (1921). L'Année Aéronautique: 1920-1921. Paris: Dunod. p. 123.
This page was last edited on 26 January 2021, at 16:22
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