- Rolls-Royce Exe
The Rolls-Royce Exe, or Boreas, [This name was dropped due to conflict with the Bristol Aeroplane Company's series of Greek mythology named engines, Lumsden 2003, p.201.] was a 24-cylinder X block
sleeve valve aircraft engine intended primarily for the new FaireyFleet Air Arm aircraft, particularly theFairey Barracuda . The Exe was under development in 1939, having been started in the 1930s, along with the Peregrine and Vulture.Work on the Exe was suspended in August 1939, [Lloyd 1978, p4-5.] and stopped about August 1940. [Pugh 2000, p.263-265.] In August 1940 Hives wanted to stop work on the Peregrine, Exe and Vulture to concentrate on the Merlin and Griffon engines.
For discussion on Rolls-Royce development priorities, see
Rolls-Royce aircraft piston engines .pecifications (Exe)
"Data from:" Lumsden [Lumsden 2003, p.201.] pistonspecs
type=24-cylinder supercharged liquid-cooled 90 degree X layout aircraft piston engine
bore=4.2 in (101.6 mm)
stroke=4.0 in (106.7 mm)
displacement=1,348 in³ (22.1 L)
length=
diameter=
width=
height=
weight=1,530 lb (694 kg)
valvetrain=Sleeve valve
supercharger=Gear-drivencentrifugal type supercharger , single stage
turbocharger=
fuelsystem=
fueltype=Petrol
oilsystem=
coolingsystem=Pressure air-cooled
power=1,150 hp at 4,200 rpm, +4.5 psi boost at sea level
specpower=
compression=8:1
fuelcon=
specfuelcon=
oilcon=
power/weight=0.75 hp/lbee also
*
Rolls-Royce aircraft piston engines Aeroenginecontent
related=
*Rolls-Royce Pennine similar aircraft=
*Allison V-3420
*Junkers Jumo 222
*Napier Sabre lists=
*List of aircraft engines References
Notes
Bibliography
* Lloyd, Ian "Rolls-Royce: The Merlin at War" (1978, Macmillan London) ISBN 0333 240162
* 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 9External links
* [http://www.stobbe.dk/library/engines/rolls_royce/images/rr-exe.jpgPhoto of the Rolls-Royce Exe]
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