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).
Proposed modifications to the front and rear wheel braking systems.
| Identifier | ExFiles\Box 73\2\ scan0106 | |
| Date | 23th November 1923 | |
| R.R. 493A (40 H) (SL 42 12-7-23). J.H. D.{John DeLooze - Company Secretary} EXPERIMENTAL REPORT. Expl. No. 9940 / 1559 REF: Hs{Lord Ernest Hives - Chair}4/LG23.11.23. CJ. from Hs.{Lord Ernest Hives - Chair} FRONT WHEEL BRAKES - CJ14/E22.11.23. With the design of the front brakes as it stands, it should give equal braking forward and backward. If the power of the brake is reduced (as it is suggested in a telegram we received from R.{Sir Henry Royce} yesterday) to 50% efficiency, the backward braking will also be reduced that amount. Rg.{Mr Rowledge} was with R.{Sir Henry Royce} yesterday and the latest information he has brought back is that it is intended to abandon the use of radius rods to the front axle, but instead, to anchor the rear end of the front spring and use the springs as radius rods. This will enable the turning circle of the car to be restored to the same as it is at present. It is also intended to modify the front brakes so that they give more effective braking backwards than they do forward. It is also suggested that the rear brakes should be modified so that they give more braking forward. They can never be used backwards as long as we retain the present type 'servo'. Making the rear brakes more effective forward will reduce the load and heat on the small 'servo' brake and so reduce one of our troubles. Until we receive R's latest instructions and designs we cannot give any opinion as regards possible troubles. Hs.{Lord Ernest Hives - Chair} | ||