Fiat A.12

Fiat A.12

Company type	Aircraft piston engine
Industry	Aerospace engineering
Founded	1916
Defunct	1919
Products	Six-cylinder, liquid-cooled inline piston engine
Parent	Fiat

Template:Infobox aero engine

The Fiat A.12 was a six-cylinder, liquid-cooled, inline piston engine featuring a bore diameter of 160 mm and a stroke length of 180 mm. This configuration resulted in an engine capacity slightly under 22 liters, with different versions delivering power outputs ranging from 245 to 300 hp (183 to 224 kW) at 1,700 revolutions per minute. Although considered large for its era, the A.12 earned a reputation for reliability and efficiency. Production spanned from 1916 to 1919, during which 13,260 units were manufactured.

Variants

A.12

A.12bis

Applications

File:Airco D.H.9.jpg

Airco DH.9

• Airco DH.4
• Airco DH.9
• Ansaldo A.300
• Breguet 14
• Caproni Ca.4
• Caproni Ca.5
• Caproni Ca.46
• Fiat 2000 (tank)
• Fiat Mephistopheles (racing car)
• Fiat R.2
• Fukunaga Tenryu 10
• IVL A.22 Hansa
• Macchi M.9
• Macchi M.15
• NS class airships
• Pomilio PC/PD/PE
• SAML S.1/S.2
• Savoia-Marchetti S.55
• Savoia-Pomilio SP.2
• Savoia-Pomilio SP.3
• SIA 7
• SIA 9
• SIAI S.16
• Vickers Vimy (third prototype)

Engines on display

• A Fiat A.12 engine is exhibited at the New England Air Museum, located at Bradley International Airport in Windsor Locks, Connecticut.
• The National Military Museum, Romania houses an A.12 bearing serial number 7395.
• An example of the Fiat A.12 is part of the collection at the National Museum of the United States Air Force, where it is occasionally shown to the public.

Specifications (A.12)

File:Fiat A.12 ("A-12") on display at the National Museum of the Air Force (NMAF) at Wright-Patterson near Dayton, OH in July, 2025.jpg

Fiat A.12 ("A-12") six-cylinder inline aircraft engine displayed at the National Museum of the Air Force (NMAF), Wright-Patterson near Dayton, Ohio, July 2025

References

• Gunston, Bill. (1986). World Encyclopaedia of Aero Engines. Patrick Stephens: Wellingborough. p. 62