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).
Graph plotting water flow and temperature rise against RPM for a 'Spectre' engine with different pump configurations.
| Identifier | ExFiles\Box 149a\1\ scan0068 | |
| Date | 15th April 1935 | |
| SPECTRECodename for Phantom III WATER FLOWS S.P. 16. TANK IN PLACE OF NORMAL RADIATOR. 1 3/8 BORE PIPE FROM TANK TO PUMP NO THERMOSTATS FITTED. INLET TEMP CONSTANT AT 70° C. LARGE PUMP LEC. 4162. MOD'F'D CRANKCASE LEC. 4074 ORIGINALL SMALL PUMP ORIGINAL SMALL PUMP AND CRANKCASE FLOW LBS/MIN R.P.M TEMP. RISE ACROSS THE ENGINE R.H.S | ||