Fiat A.54

From Wikipedia, the free encyclopedia

The Fiat A.54 was a seven-cylinder, air-cooled radial engine developedin Italy in the 1930s as a powerplant for aircraft. Amongst others, it powered the Ambrosini SAI.1 and SAI.2 race planes.

[edit] Specifications (A54)

General characteristics

• Type: 7 cylinder air cooled radial
• Bore: 105mm (4.13 in)
• Stroke: 119mm (4.72 in)
• Displacement: (493.5 cu in)
• Length: 1,770mm (69.69 in)
• Width: 734mm (28.93 in)
• Height: 1,065mm (41.93 in)
• Dry weight: 150kg (330.7 lb)

Components

• Valvetrain: One intake and one sodium-cooled exhaust valve per cylinder
• Fuel system: 1 stromberg carb
• Fuel type: 74 octane
• Cooling system: air cooled

Performance

• Power output: 140hp @ 2,100RPM
• Compression ratio: 5.50:1
• Power-to-weight ratio: 3.31lb/hp

[edit] References

• oldengine.org

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