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 relationship between radiator water temperature and the air temperature at the rear of the engine fan under different conditions.
| Identifier | WestWitteringFiles\K\December1923\ Scan84 | |
| Date | 17th October 1923 | |
| RELATION BETWEEN WATER TEMP. AND TEMP AT REAR OF FAN WATER BROUGHT TO 100°C AT COMMENCEMENT OF TEST AND READINGS TAKEN AS TEMPERATURE FALLS NO THERMOSTAT. NO BAFFLE PLATES AIR TEMP ENTERING RADIATOR AT 45 M.P.H. 12.5°C AIR TEMP ENTERING RADIATOR AT 25 M.P.H 10°C. TEMP TAKEN HERE TOP RADIATOR WATER TEMP. | ||