ABC Scorpion

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Scorpion II installed in an ANEC II at the Shuttleworth Collection
Type Flat-twin aero engine
National origin England
Manufacturer ABC Motors Limited
Designed by Granville Bradshaw
First run 1921

The ABC Scorpion is a 30 hp (22 kW) two-cylinder aero engine designed by the noted British engineer Granville Bradshaw for use in light aircraft. The engine was built by ABC Motors Limited and first ran in 1921.[1]


Scorpion I
1923, 30 hp (22 kW)
Scorpion II
1924, 34 hp (25 kW), increased bore and stroke.



The only ANEC II (G-EBJO) flies regularly at the Shuttleworth Collection at Old Warden and is powered by a Scorpion II.

Specifications (Scorpion I)[edit]

Data from Lumsden[2]

General characteristics

  • Type: 2 cylinder air cooled flat-twin
  • Bore: 3.6 in (87.5 mm)
  • Stroke: 3.7 in (91.5 mm)
  • Displacement: 73.32 cu in (1.1 L)
  • Dry weight: 90 lb (41 kg)



See also[edit]

Comparable engines
Related lists



  1. ^ Gunston 1989, p.9.
  2. ^ Lumsden 2003, p.54.


  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
  • Guttery, T.E. The Shuttleworth Collection. London: Wm. Carling, 1969. OCLC 19614929
  • Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.

External links[edit]