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).
Temperature of the air under the foot-boards where the main switch is fixed.
| Identifier | ExFiles\Box 74\3\ scan0098 | |
| Date | 14th August 1919 | |
| To BY.{R.W. Bailey - Chief Engineer} from EH. X3908 Chassis EM3/LG14.8.19. RE TEMPERATURE OF AIR UNDER FOOT-BOARDS. The temperature of the air in the position where the main switch is now fixed on the dash board is from 40 to 45ºC. in the hot weather. EH. | ||