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).
Continued note on engine radiator temperatures and freezing conditions when coasting.
| Identifier | ExFiles\Box 171\3\ img056 | |
| Date | 20th August 1920 guessed | |
| Hs{Lord Ernest Hives - Chair}1/G8620. Contd. on the road, (air temperature 17ºC). the temperature was 55 to 60ºC, but of course, this depends entirely upon the condition under which the engine is run. The worst condition for freezing the radiator is when the car is coasted down a very long hill. Hs.{Lord Ernest Hives - Chair} | ||