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.
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
Blackburn Iris
Junkers Ju 52
Hawker Dantorp
Hawker Horsley
Specifications (Leopard I)
See also
References
Notes
Bibliography
Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. . Mason, Francis K. Hawker Aircraft since 1920 (third ed.). London: Putnam, 1991. . Smith, Herschel. Aircraft Piston Engines. New York, New York: McGraw-Hill, 1981. .