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).
Car overheating, referencing the 1913 Austrian Trials and potential radiator modifications.
| Identifier | ExFiles\Box 24\4\ Scan249 | |
| Date | 6th September 1924 | |
| To C.J. from Hs.{Lord Ernest Hives - Chair} X766 Hs{Lord Ernest Hives - Chair}4/LG1 6.9.24. OVER-HEATING. X766 X1291 With reference to your memo. CJ4/E12. 9.24. The weather during the Austrian Trials in 1913 was cool. There were no really hot days. None of the 40/50 HP. cars boiled. It was because they did not boil that we never filled up with water. As there was no penalty for filling up with water each day, this would have been done if the water had boiled. When the high filler caps are fitted, it is necessary to extend the over-flow pipes which carry away the steam to the top of the extension on the filler cap. On existing cars, this would not be an easy thing to do, but with slight modification in design, it would be practicable to make it so that the extension can be easily fitted. Since the time when the extensions were proved to be an advantage, the radiator inlet has been modified so that there is less chance of the water being carried away in steam. Tests carried out on present cars do not prove the extension to be any marked advantage. We will however repeat the test and report exactly what the gain would be. Hs.{Lord Ernest Hives - Chair} | ||