Armstrong Siddeley Leopard
The Armstrong Siddeley Leopard was a British 14-cylinder twin-row air-cooled radial aero engine developed in 1927 by Armstrong Siddeley. It was the most powerful radial engine in the world when introduced.[1]
Variants
- Leopard I
- 700 hp, medium supercharged. Direct drive propeller.
- Leopard II
- 700 hp, geared epicyclic drive.
- Leopard III
- 800 hp, two-valve cylinder head, direct drive.
- Leopard IIIA
- 800 hp, geared epicyclic drive.
Applications
Specifications (Leopard I)
Data from [3]
General characteristics
- Type: 14-cylinder twin-row air-cooled radial engine
- Bore: 6.0 in (152.4 mm)
- Stroke: 7.5 in (190.5 mm)
- Displacement: 2,970 cu in (48.6 L)
- Length: 60.85 in (1546 mm)
- Diameter: 58 in (1473 mm)
- Dry weight: 1,466 lb (665 kg)
Components
- Valvetrain: Overhead valve, four valves per cylinder
- Fuel type: Petrol
- Cooling system: Air-cooled
Performance
See also
- Comparable engines
- Related lists
References
Notes
- ↑ Smith 1981, p.112.
- ↑ Single engine version only
- ↑ Lumsden 2003, p.69.
Bibliography
- Smith, Herschel. Aircraft Piston Engines. New York, New York: McGraw-Hill, 1981. ISBN 0-07-058472-9.
- Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
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