Fiat AS.2
The Fiat AS.2 was an Italian 12-cylinder, liquid-cooled V engine designed and built in the mid-1920s by Fiat Aviazione especially for the 1926 Schneider Trophy air race.[1]
Design and development
Designed for the 1926 Schneider Trophy contest held at Hampton Roads, Virginia, the AS.2 was inspired by the American Curtiss D-12 engine. Unlike the D-12 the engine featured separate steel cylinders and cast aluminium alloy cylinder heads. The 'S' in AS stood for 'Spinto' (thrust). A weakness of the engine was its magnesium alloy pistons, a new engineering material at the time. Many pistons were holed. Despite the engine's technical problems it was successful at the Schneider Trophy event, winning on 13 November 1926, with a second AS.2 powered aircraft placing third.[2]
Applications
Specifications (AS.2)
Data from Eves[3]
General characteristics
- Type: 12-cylinder V-engine
- Bore: 140 mm (5.5 in)
- Stroke: 170 mm (6.7 in)
- Displacement: 30.955 litres (1,889 cu in)
- Width: 720 mm
- Height: 850 mm
- Dry weight: 408 kg (900 lb)
Components
- Valvetrain: Two intake and two exhaust valves per cylinder
- Fuel system: Carburettor
- Cooling system: Liquid-cooled
Performance
See also
- Comparable engines
- Related lists
References
Notes
- ^ Eves 2001, p. 214.
- ^ Eves 2001, p. 243.
- ^ Eves 2001, p. 215.
Bibliography
- Eves, Edward The Schneider Trophy Story. Shrewsbury. Airlife Publishing Ltd., 2001. ISBN 1-84037-257-5.
- Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
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