Rolls-Royce Gnome Information & Rolls-Royce Gnome Links at HealthHaven.com

Gnome
	Rolls-Royce Gnome at the Imperial War Museum Duxford
Type	Turboshaft
Manufacturer	Rolls-Royce
First run	5 June 1959
Major applications	Westland Whirlwind; Westland Wessex; Westland Sea King
Developed from	General Electric T58

The Rolls-Royce Gnome is a single spool turboshaft originally developed by the de Havilland Engine Company as a licence-built General Electric T58 - a mid 1950s design.^[1] The Gnome came to Rolls-Royce after their takeover of Bristol Siddeley in 1966, Bristol having absorbed de Havilland Engines Limited in 1961.

[edit] Design and development

A two stage turbine drives the 10 stage all-axial compressor, whilst a single stage free power turbine drives the load. The combustor is annular. The engine was one of the first developed with an analogue computer as part of the fuel control system, specifically to control fuel flow during acceleration to prevent engine surge occurring.

[edit] Variants and applications

H 1000: 1,050 shp
- Westland Whirlwind
- AgustaBell AB204B
H 1200: 1,250 shp
- Westland Whirlwind Series 60,
- Westland Wessex
- AgustaBell AB204B
H 1400: 1,400 shp
- Westland Sea King
- Agusta A.101
H 1400-1: 1,660 shp
- Westland Sea King and Commando

[edit] Engines on display

A Rolls-Royce Gnome is on display at the Imperial War Museum Duxford, another is part of the aero engine collection at the Science Museum (London).

[edit] Specifications (Gnome H1400-1)

Data from Flight^[2]

General characteristics

Type: Turboshaft
Length: 54.8 in (1392 mm)
Diameter: 22.7 in (577 mm)
Dry weight: 334 lb (151.5 kg)

Components

Compressor: Ten-stage axial flow
Combustors: Annular
Turbine: Single stage compressor turbine, two-stage power turbine

Performance

Maximum Power output: 1,500 shp (1119 kW)
Power-to-weight ratio: 4.5 shp/lb

[edit] See also

List of aircraft engines

[edit] References

[edit] Notes

^ Gunston 1989, p.155.
^ Flightglobal archive - 1973 Retrieved: 9 November 2008

[edit] Bibliography

Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9

[edit] External links

Wikimedia Commons has media related to: Rolls-Royce Gnome

de Havilland engines^{[dead link]}

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[0] Gunston 1989, p.155.

[1] Flightglobal archive - 1973 Retrieved: 9 November 2008

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