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 showing the effect of inlet temperature on water flow at 4000 RPM under various pump and radiator configurations.
| Identifier | ExFiles\Box 149a\1\ scan0069 | |
| Date | 26th November 1935 guessed | |
| SPECTRECodename for Phantom III WATER FLOWS S.P.17 EFFECT OF VARIATION OF INLET TEMPERATURE ON THE FLOW AT 4000 R.P.M ① TANK IN PLACE OF NORMAL RADIATOR 1 3/8 BORE PIPE TO PUMP LARGE PUMP LEC 4162 MODIFIED CRANKCASE LEC 4074 ② ORIGINAL SMALL PUMP. OTHERWISE AS ① ③ 1 1/8 BORE PIPE FROM TANK TO PUMP 20" LONG AS USED IN CHASSIS OTHERWISE AS ① ④ RADIATOR LEC 3963 IN CIRCUIT, OTHERWISE AS ③ FLOW LBS/MIN DEPRESSION AT INLET TO ROTOR INS Hg INLET TEMPERATURE TO PUMP 55° 60° 65° 70° 75° 80°C 85° 90°C PRESS AT THE PUMP OUTLET INS HG | ||