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

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.

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

Specifications (W.4A Viper)

Data from Lumsden[2]

General characteristics

Components

  • Fuel system: Twin Zenith-Duplex carburettors
  • Cooling system: Liquid-cooled
  • Reduction gear: Direct drive, Right-hand tractor

Performance

See also

Related development

Comparable engines

Related lists

References

Notes

  1. The Shuttleworth Collection - SE5a Archived 23 July 2019 at the Wayback Machine www.shuttleworth.org Retrieved: 09 March 2017.
  2. 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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