The Fiat A.70 was an air cooled radial engine with seven cylinders developed by the Italian engineering company Fiat Aviazione in the 1930s. The engine powered a number of Italian light competition and prototype aircraft.
|Type||Air cooled 7-cylinder radial aircraft engine|
|Designed by||Tranquillo Zerbi|
Design and development
The A.70 was developed by Fiat Aviazione, part of Fiat S.p.A., as one of a number of related small radial engines. It debuted at the Challenge International de Tourisme 1934, powering a number of the competitors. The engine had seven cylinders of square design, with a bore and stroke of 115 mm (4.5 in), arranged around a crankshaft in a single row. It was connected to the propeller by direct drive, often through a NACA cowling.
- Type: 7-cylinder, single row, air cooled radial engine
- Bore: 115 mm (4.5 in)
- Stroke: 115 mm (4.5 in)
- Displacement: 9.35 l (571 in3)
- Dry weight: 168 kg (370 lb)
- Valvetrain: Two valves per cylinder
- Fuel type: Gasoline
- Cooling system: Air-cooled
- Reduction gear: Direct drive
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