Rolls-Royce Exe
Exe | |
---|---|
Type | Piston X-24 aero-engine |
National origin | United Kingdom |
Manufacturer | Rolls-Royce Limited |
First run | September 1936 |
Major applications | Fairey Battle |
Developed into | Rolls-Royce Pennine |
The Rolls-Royce Exe, or Boreas,
The Exe was named after the River Exe, although Rolls-Royce later transferred the use of river names to its gas turbine engines.
Design and development
The Exe was under development in 1939, having been started in the 1930s, along with the
Originally intended for the Supermarine Type 322 and Fairey Barracuda the Exe was only test flown in a Fairey Battle, the first flight taking place on 30 November 1938. This aircraft continued in use for some time as a communications aircraft where the Exe was noted to be quite reliable in service.[4]
Applications
- Fairey Barracuda (intended)
- Fairey Battle (testbed)
- Supermarine Type 322 (intended)
Specifications (Exe)
Data from Gunston and Lumsden.[5][6]
General characteristics
- Type: 24-cylinder supercharged air-cooled 90-degree piston engine
- Bore: 4.225 in (107.3 mm)
- Stroke: 4.0 in (100 mm)
- Displacement: 1,348 in3 (22.09 L)
- Dry weight: 1,530 lb (690 kg)
Components
- Valvetrain: Sleeve valve
- centrifugal type supercharger, single stage
- Fuel type: Petrol
- Cooling system: Pressure air-cooled
- Reduction gear: 0.358:1, left hand tractor
Performance
- Power output: 1,150 hp (860 kW) at 4,200 psiboost at sea level
- Compression ratio: 8:1
- Power-to-weight ratio: 0.75 hp/lb (1.23 kW/kg)
See also
Related development
Comparable engines
Related lists
References
Notes
Bibliography
- ISBN 1-85260-163-9
- Lloyd, Ian Rolls-Royce: The Merlin at War (1978, Macmillan London) ISBN 0-333-24016-2
- Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.
- Pugh, Peter.The Magic of a Name: The Rolls-Royce Story, The first 40 Years (2000, Icon Books Cambridge) ISBN 1-84046-151-9
- Rubbra, A.A. Rolls-Royce Piston Aero Engines - a designer remembers: Historical Series no 16 :Rolls-Royce Heritage Trust, 1990. ISBN 1-872922-00-7
External links
- Photo of the Rolls-Royce Exe
- The Exe-engined Fairey Battle (top picture) in a 1948 issue of Flight