Leopard
Type Radial engine
National origin United Kingdom
Manufacturer Armstrong Siddeley
First run 1927

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 Lumsden, 2003.[5]

General characteristics

Components

Performance

See also

Comparable engines

Related lists

References

Notes

  1. ^ Smith 1981, p.112.
  2. ^ Single engine version only
  3. ^ Mason 1991, p. 140.
  4. ^ Mason 1991, p. 138.
  5. ^ Lumsden 2003, p.69.

Bibliography

  • Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
  • Mason, Francis K. Hawker Aircraft since 1920 (third ed.). London: Putnam, 1991. ISBN 978-0-8517-7839-6.
  • Smith, Herschel. Aircraft Piston Engines. New York, New York: McGraw-Hill, 1981. ISBN 0-07-058472-9.
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