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 ① 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 ③ 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 | ||