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).
Power curve graph comparing the performance of the R.R. Steam Cooling System against a Standard Water Cooling system.
| Identifier | ExFiles\Box 5a\5\ 05-page001 | |
| Date | 10th February 1926 | |
| POWER CURVE 11 GIII (10-2-26) R.R. STEAM COOLING SYSTEM AND STANDARD WATER COOLING. ROAD WHEEL B.H.P ENGINE R.P.M. WATER COOLING STEAM COOLING ENGINE TEMP: (WATER COOLING) AT 80°C N.B. ENGINE BECOMES TOO HOT TO ALLOW A FIGURE TO BE OBTAINED OVER 2500 R.P.M. (STEAM COOLING) WATER CAPACITY OF STEAM COOLING SYSTEM RADIATOR TANK 6.375 PTS ENGINE 8.75 PTS TOTAL 15.125 PTS STARTING FROM COLD TIME TAKEN FOR ENGINE WATER TO REACH 80°C WHEN RUNNING LIGHT AT 1000 R.P.M. STANDARD WATER COOLING 16 MINS R.R. STEAM COOLING. 2 MINS 50 SECS | ||