Fiat A.12

A.12
A.12
	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 litres, with variants producing between 245 and 300 hp (183 and 224 kW) 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.

Variants

A.12
A.12bis

Applications

Engines on display

There is a Fiat A.12 on display at the New England Air Museum, Bradley International Airport, Windsor Locks, CT.^[1]
The National Military Museum, Romania shows the A.12 with serial number 7395.
The National Museum of the United States Air Force possesses an example that is sometimes on display.

Specifications (A.12)

Fiat A.12 ("A-12") in-line six cylinder aircraft engine on display at the National Museum of the Air Force (NMAF) at Wright-Patterson near Dayton, OH in July, 2025

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)

Components

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

Performance

Power output: 245 hp at 1,700 rpm

References

↑ New England Air Museum - Fiat A.12 Archived 2021-02-27 at the Wayback Machine Retrieved: 26 January 2021

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.

[1] New England Air Museum - Fiat A.12 Archived 2021-02-27 at the Wayback Machine Retrieved: 26 January 2021

[1]