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).
Agreement on a vehicle's electrical system and a plan to investigate brake freezing.
| Identifier | ExFiles\Box 174\3\ img201 | |
| Date | 1st January 1940 | |
| -4- Rm.{William Robotham - Chief Engineer}7/JE.1. .40. 2 N.BAL. Positive earth electrical system. It was agreed that R.C. should arrange for the Ripplet now being built, should have positive earth. Brakes Freezing on. Hm.{Capt. W. Hallam - Head Repairs} asked PD. to drive a car in the snow and then leave it in the cold chamber, and investigate what part of the brake system freezes. Rm.{William Robotham - Chief Engineer} | ||