ABC Scorpion
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| Scorpion | |
|---|---|
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| ABC Scorpion I on display at the Shuttleworth Collection | |
| Type | Flat-twin aero engine |
| National origin | United Kingdom |
| Manufacturer | ABC Motors |
| Designer | Granville Bradshaw |
| First run | 1921 |
The ABC Scorpion is a 30 hp (22 kW) two-cylinder aero engine designed by British engineer Granville Bradshaw for use in light aircraft. The engine was built by ABC Motors Limited and first ran in 1921.[1]
Variants
- Scorpion I
- 1923, 30 hp (22 kW)
- Scorpion II
- 1924, 34 hp (25 kW), increased bore and stroke.
Applications
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- ABC Robin
- Boulton Paul Phoenix
- BFW M.19
- BFW M.23
- Comper Swift
- de Havilland Humming Bird
- Farman Moustique
- Hawker Cygnet
- Heath Parasol
- Hendy Hobo
- Henderson-Glenny Gadfly
- Kay Gyroplane
- Luton Minor
- Mignet HM.14 Pou-du-Ciel
- Parmentier Wee Mite
- Peyret-Mauboussin PM X
- RWD 1
- SAI KZ I
- Saynor & Bell Canadian Cub
- Short Satellite
- Snyder Buzzard
- Udet U 7 Kolibri
- Wheeler SlymphScript error: No such module "Unsubst".
- Westland Woodpigeon
Survivors
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 [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)
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)
See also
Comparable engines
Related lists
References
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Notes
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Bibliography
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- Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. Template:ISBN
- Guttery, T.E. The Shuttleworth Collection. London: Wm. Carling, 1969. Template:Catalog lookup link
- Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. Template:ISBN.