Wolseley Viper
The Wolseley Viper is a British-built, high-compression derivative of the Hispano Suiza HS-8 liquid-cooled V-8 engine, built under licence by Wolseley Motors during World War I.
| Viper | |
|---|---|
 | |
| Rear view of preserved Wolseley Viper | |
| Type | Piston inline aero-engine |
| Manufacturer | Wolseley Motors |
| First run | 1918 |
| Major applications | Royal Aircraft Factory S.E.5 |
It powered later models of the S.E.5a, SPAD VII and other British or British-built aircraft designed for the Hispano-Suiza.
Variants
- Wolseley W.4A Python I
- Wolseley W.4A Python II
- Wolseley W.4A Viper
- Wolseley W.4B Adder I
- Wolseley W.4B Adder II
- Wolseley W.4B Adder III
- Wolseley W.4A Python
Applications
Survivors
A Wolseley Viper powered Royal Aircraft Factory S.E.5a is owned by, and on display at The Shuttleworth Collection, Old Warden Aerodrome in the UK.[1]
Engines on display
- A preserved Wolseley Viper is on public display at the Science Museum, London.
- A preserved Wolseley Viper is on public display at the Museo Nacional de Aeronáutica de Argentina
Specifications (W.4A Viper)
Data from Lumsden[2]
General characteristics
- Type: 8-cylinder, upright, 90 degree Vee engine
- Bore: 4.72 in (120 mm)
- Stroke: 5.12 in (130 mm)
- Displacement: 716.8 cu in (11.77 L)
- Dry weight: 500 lb
Components
- Fuel system: Twin Zenith-Duplex carburettors
- Cooling system: Liquid-cooled
- Reduction gear: Direct drive, Right-hand tractor
See also
Related development
Comparable engines
Related lists
References
Wikimedia Commons has media related to Wolseley Viper.
Notes
- The Shuttleworth Collection - SE5a Archived 23 July 2019 at the Wayback Machine www.shuttleworth.org Retrieved: 09 March 2017.
- Lumsden 2003, p. 232.
Bibliography
- Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
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