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 variation of air temperature required to boil radiator fluid against altitude.
| Identifier | ExFiles\Box 87\1\ scan0099 | |
| Date | 26th September 1934 guessed | |
| VARIATION OF "AIR TEMP: TO BOIL" RADIATOR FIGURE WITH ALTITUDE. °C ALTITUDE - FT. SEA LEVEL TEMP: TO BOIL - 50°C SEA LEVEL TEMP: TO BOIL - 40°C SEA LEVEL AIR TEMP: TO BOIL 30°C AIR TEMP: | ||