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).
Page two of a typed memo from F.H. Royce regarding modifications to the 40/50 model's springs, buffers, and servo brakes.
| Identifier | ExFiles\Box 72\3\ scan0008 | |
| Date | 19th February 1924 guessed | |
| contd :- -2- than other people) than the suggestions I have already made of a 25% increase in stiffness and an increase in the thick- ness of the rubber buffers. In future 40/50 we are length- ening the front spring, they will then be longer than any other make I believe. Regarding the heating of the 'servo' the figures given to me led me to believe that this would be considerably less than an ordinary countershaft brake, (1) the information may have been incorrect or (2) we have not the conditions intended, i.e., not enough lever to back brake, or (3) countershaft brakes would never stand a reasonable long down- hill (we abandoned them before ferodo and similar linings were used. Yours ever, (Sgd.) F.H. Royce. | ||