Rolls-Royce Archives
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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Two graphs showing Peregrine engine oil temperature tests comparing sump designs and radiator shutter settings.

Identifier  ExFiles\Box 179b\3\  img326
Date  8th February 1933 guessed
  
OIL TEMPERATURE TESTS PEREGRINE
RAISED TO ATMOSPHERIC TEMPERATURE

COMPARISON OF RIBBED AND PLAIN BOTTOM HALVES
OIL SPRAYED ON BOTTOM HALF
OIL INLET TO BEARINGS C°
130
120
110
100
OIL PR.{Percy H. Rose} 20 LBS/D''
ROAD SPEED M.P.H.
60
65
70

COMPARISON OF RADIATOR SHUTTERS NORMALLY CLOSED AND FULLY OPEN RIBBED SUMP
OIL SPRAYED ON BOTTOM HALF
120
110
100
90
OIL PR.{Percy H. Rose} 20 LBS/D''
ROAD SPEED M.P.H.
60
65
70
  
  


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