Fiat A.74
From Wikipedia, the free encyclopedia
The Fiat A.74 was a two-row, fourteen-cylinder, air-cooled radial engine product in Italy in the 1930s as a powerplant for aircraft. It was used in some of Italy's most important aircraft of World War II.
The A.74 was important in that it marked a transition for Fiat from liquid cooled inline engines, to large air cooled radial engines. Fiat had made a number of smaller radial air engines over the years but the A.74 marked a major increase in power and size. The A.74 family was widely produced and spawned a number of related engines such as the A.76, A.80 and A.82. Each successive generation being larger and more powerful than the previous. The entire series grew from 14 cylinders to 18 cylinders with a power output of 840hp to 1,400hp.
[edit] Specifications (A.74)
General characteristics
- Type: 14 cylinder air cooled radial
- Bore: 140 mm (5.512 in)
- Stroke: 145 mm (5.709 in)
- Displacement: 31,249.42 cc (1,906.96 cu in)
- Length: 1,044mm (41.13 in)
- Width: 653mm (25.71 in)
- Height: 1,195mm (47.05 in)
- Dry weight: 565kg (1245.6 lb)
Components
- Valvetrain: One intake and one sodium-cooled exhaust valve per cylinder
- Fuel system: 1 stromberg carb
- Fuel type: 87 octane
- Cooling system: air cooled
Performance
- Power output: 840hp @ 2,400RPM
- Compression ratio: 6.50:1
- Power-to-weight ratio: 1.48lb/hp @ cruise speed
[edit] Applications
- CANSA FC.20
- Fiat CR.42
- Fiat G.50
- Fiat RS.14
- Macchi MC.200
[edit] References
|
||||||||||||||
