Armstrong Siddeley Genet Major is a British five-cylinder (later seven-cylinder), air-cooled, radial engine for aircraft, designed and built by Armstrong Siddeley and first run in 1928. It developed 140 horsepower (104 kW). In Royal Air Force use the seven-cylinder version was known as the Civet I. The Feliform names used are in line with company convention, the Genet and Civet both being large [1 ] cat-like carnivores.
Variants and applications [ edit ]
Genet Major I [ edit ]
The Genet Major 1 was a five-cylinder engine of 105 horsepower (78 kW) that was closely related to the
Genet I but with increased bore and stroke.
Genet Major 1A (Civet I) [ edit ]
The Genet Major 1A (or Civet I in RAF service) was a seven-cylinder development of the Genet Major I, nominally rated at 145 horsepower (108 kW).
Genet Major III [ edit ]
As Genet Major IA but with cylinders using cast rocker boxes.
Genet Major IV [ edit ]
A geared propeller drive version of the Genet Major IA, 160 horsepower (120 kW).
Survivors [ edit ]
An Armstrong Siddeley Genet Major powers the
Southern Martlet owned and operated by the Shuttleworth Collection and flies regularly throughout the summer months. [2 ]
Engines on display [ edit ]
Specifications (Genet Major IA/Civet I) [ edit ]
Data from Lumsden [6 ]
Type: 7-cylinder single-row radial piston engine
Bore: 4.25 in (107.95 mm)
Stroke: 4.5 in (114.3 mm)
Displacement: 452.01 cu in (7.3 L)
Length: 38.8 in (985.5 mm)
Diameter: 38.15 in (970 mm)
Dry weight: 327 lb (148 kg)
See also [ edit ]
References [ edit ]
Bibliography [ edit ]
Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 18. Lumsden, Alec.
British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.