Trisha Shetty

ABC Scorpion

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Manufacturer  ABC Motors
ABC Scorpion httpsuploadwikimediaorgwikipediacommonsthu

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.



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)

Data from Lumsden

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)
  • Components

  • Valvetrain: Overhead valve, two valves per cylinder
  • Fuel system: Carburettor
  • Fuel type: 74 Octane petrol
  • Cooling system: Air
  • Performance

  • Power output: 30 hp (22 kW) at 2,750 rpm
  • Compression ratio: 4:1
  • Power-to-weight ratio: 0.33 hp/lb (0.53 kW/kg)
  • References

    ABC Scorpion Wikipedia

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