Rolls-Royce R engine

E868653

The Rolls-Royce R engine was a high-performance British aero engine developed in the late 1920s that powered record-breaking racing seaplanes and laid the technological groundwork for later Rolls-Royce engines like the Merlin.

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Statements (49)

Predicate Object
instanceOf aero engine
liquid-cooled aircraft engine
piston engine
applicationType military experimental
racing
basedOn Rolls-Royce Buzzard engine NERFINISHED
bore 6 inches
compressionRatio approximately 6:1 to 7:1 depending on version
configuration V-12
coolingSystem liquid-cooled
countryOfOrigin United Kingdom
cylinderArrangement 60-degree V
designer Arthur Rowledge NERFINISHED
displacement 2,238 cubic inches
36.7 litres
displayedAt Royal Air Force Museum Cosford NERFINISHED
Science Museum, London NERFINISHED
era late 1920s
firstRun 1929
fuelSystem carburettor
fuelType special racing fuel blend
induction supercharged
influenced Rolls-Royce Griffon engine NERFINISHED
Rolls-Royce Merlin engine NERFINISHED
manufacturer Rolls-Royce Limited NERFINISHED
maximumPowerOutput over 2,300 horsepower in later versions
notableAchievement contributed to winning the 1931 Schneider Trophy
helped advance high-performance aero engine design
set world air speed records
notableCompetition Schneider Trophy races NERFINISHED
notableRecord supported world speed record flights by R. J. Mitchell’s Supermarine designs
numberBuilt approximately 19
poweredAircraft Gloster VI NERFINISHED
Short Crusader NERFINISHED
Supermarine S.6 NERFINISHED
Supermarine S.6A NERFINISHED
Supermarine S.6B NERFINISHED
primaryUse racing seaplanes
speed record aircraft
productionStatus limited production
propellerDrive reduction gear
stroke 6.6 inches
successor Rolls-Royce Merlin engine NERFINISHED
technologyLegacy high-output supercharging techniques
high-strength lightweight components
refined cooling and lubrication systems
typicalPowerOutput around 2,000 horsepower
valvesPerCylinder 4
valvetrain single overhead camshaft per bank

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Schneider Trophy competition notableEngine Rolls-Royce R engine