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).
Typed report discussing scored rear brake drums and wear on 4-wheel brake systems compared to 2-wheel systems.
| Identifier | ExFiles\Box 49\3\ Scan204 | |
| Date | 15th January 1925 guessed | |
| Contd :- -2- seriously scored rear brake drum. But since we have had the servo, we find that scored brake drums are frequent. The experimental experience is that with 4-wheel brakes, even when used under average conditions, wear on the rear brakes, is just as much, if not more, than when we had two brakes only. We consider this is due to the fact that at high speeds, very much more braking effort can be applied with the servo without any apparent discomfort to the passengers. Hs. {Lord Ernest Hives - Chair} | ||