The Rolls-Royce Eagle 22 was a 24 cylinder sleeve valve aero engine of 46 Litres (2,807 cubic inches) displacement. Produced in the late 1940s it was liquid cooled, of flat H configuration with two crankshafts and capable of 3,200 hp (2,387 kW) at 18 psi boost. The Eagle was extremely powerful, but was never fitted to a production front-line fighter, as it was overshadowed by a new wave of jet engines, such as the Rolls-Royce Derwent and Nene. Approximately 50 Eagles were produced. It was used in the prototypes of the Westland Wyvern fighter/torpedo bomber.
Specifications (Eagle 22)
General characteristics
- Type: 24-cylinder liquid-cooled H-type aircraft piston engine
- Bore: 5.394" 137mm
- Stroke: 5.118" 130mm
- Displacement: 2,806.6 in³ (45.99 L)
- Dry weight: 3900 lbs
Components
- Valvetrain: sleeve valves
- Cooling system: Liquid-cooled
Performance
- Power output: 3,200 hp (2,387 kW) at 18 psi (124.1 kPa) of boost (bmep 258psi if 3500rpm)
- Specific power: 1.13 hp/in³ (51.7 kW/L)
- Power-to-weight ratio: .82hp/lb
See also
- Rolls-Royce Eagle, the Eagle 22's First World War namesake;
- Rolls-Royce Crecy, another powerful late-war Rolls-Royce piston engine.
- Napier Sabre, the inspiration for the Eagle 22
External links
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Piston engines |


