Rolls-Royce Goshawk
| Goshawk | |
|---|---|
| |
| Type | Piston V-12 aero-engine |
| Manufacturer | Rolls-Royce Limited |
| First run | Template:Avyear |
| Major applications | Supermarine Type 224 Short Knuckleduster |
| Number built | 20 |
| Developed from | Rolls-Royce Kestrel |
The Rolls-Royce Goshawk was a development of the Rolls-Royce Kestrel featuring evaporative or steam cooling. It provided 660 h.p. and powered the Short Knuckleduster, the Supermarine Type 224 (a predecessor to the Supermarine Spitfire[1]) and other prototypes. In line with Rolls-Royce piston engine naming convention this engine was named after the Goshawk bird of prey.
Design and development
Developed from the Kestrel IV, the evaporative or steam cooling version was named Goshawk. Twenty engines were built and they flew only in prototypes as a few manufacturer's private ventures and "one offs". Powers for individual installations are quoted between 650 and 700 hp (520 kW).
Applications
The Goshawk was the power unit specified for the twin engined Short Knuckleduster flying boat (K3574) to Specification R24/31 and "preferred" for the Blackburn F3 (K2892), Bristol Type 123, Hawker P.V.3, Westland F.7/30, Supermarine Type 224 (K2890) and the Westland PV4 biplane (K2891) to Fighter specification F7/30.
It also powered the private venture Hawker "Intermediate Fury" (G-ABSF) and the Westland Pterodactyl V (K2770) and was installed for trials in the Gloster TSR38 (S1705), the first Gloster Gnatsnapper prototype (N227) and the Hawker High Speed Fury (K3586)
Specifications (Goshawk I)
Data from: Lumsden [2]
General characteristics
- Type: 12-cylinder liquid-cooled 60 deg. Vee aircraft piston engine
- Bore: 5.0 in (127 mm)
- Stroke: 5.5 in (140 mm)
- Displacement: 1,295.9 in³ (21.24 L)
- Dry weight: 975 lb (442.2 kg)
Components
- Valvetrain: OHC - Overhead Camshaft
- Supercharger: Single stage supercharger
- Fuel type: Petrol
- Cooling system: Liquid-cooled
Performance
- Power output: 600 bhp at 2,600 rpm (bmep=141.0psi)
- Compression ratio: 6:1
- Power-to-weight ratio: 0.61 hp/lb
See also
References
Notes
- ^ History of the Spitfire
- ^ Lumsden 2003, p.197.
Bibliography
- Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
External links
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