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The ABC 8 hp is an 8 hp (6 kW) two-cylinder aero engine designed by the noted British engineer Granville Bradshaw for use in ultralight aircraft. The engine was derived from a specially tuned motorcycle unit and was built by ABC Motors, first running in 1923.[1]
| 8 hp | |
|---|---|
 | |
| ABC 8 hp installed in the English Electric Wren at the Shuttleworth Collection | |
| Type | Flat-twin aero engine |
| National origin | United Kingdom |
| Manufacturer | ABC Motors Limited |
| Designed by | Granville Bradshaw |
| First run | 1923 |
Applications
- English Electric Wren
- Handley Page H.P.22
- Pegna-Bonmartini Rondine
Survivors
The sole surviving English Electric Wren (G-EBNV) flies occasionally at the Shuttleworth Collection at Old Warden and is powered by an ABC 8 hp engine. With barely enough power to maintain flight the aircraft is assisted into the air by a team of volunteers using bungee cord, after which the Wren lands straight ahead following a short 'hop'.[2]
Specifications (ABC 8 hp)
Data from Lumsden[3]
General characteristics
- Type: 2-cylinder air-cooled flat-twin
- Bore: 2.72 in (69 mm)
- Stroke: 2.13 in (54 mm)
- Displacement: 24.76 cu in (404 cc)
- Dry weight: 41 lb (18.6 kg)
Components
- Valvetrain: Overhead valve, two valves per cylinder
- Fuel system: Carburettor
- Fuel type: Petrol
- Cooling system: Air-cooled
Performance
- Power output: 8 hp (6 kW) at 4,500 rpm
- Power-to-weight ratio: 0.2 hp/lb (0.32 kW/kg)
See also
Related development
Comparable engines
Related lists
References
Notes
- Lumsden 2003, p.51.
- The Shuttleworth Collection - English Electric Wren Retrieved: 7 February 2009
- Lumsden 2003, p.54.
Bibliography
- Guttery, T.E. The Shuttleworth Collection of historic aeroplanes, cars, cycles, carriages and fire engines. Biggleswade, Bedfordshire: The Collection, 1969. ISBN 978-0-901319-01-2
- Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
External links
Wikimedia Commons has media related to ABC 8 hp.
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