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).
Issues with brake pedal pressure and reduction ratios.
| Identifier | ExFiles\Box 73\3\ scan0089 | |
| Date | 19th June 1924 | |
| R.R. 408A (20H) (D.A. 652 20-2-24) J.B.D. -2- 9940 Expl. No. 9910 REF: Hs{Lord Ernest Hives - Chair}3/LG19.6.24. EXPERIMENTAL REPORT. ultimate reduction, if it is coming from the worm it should alter the impulses of the drive shaft. It has only become a chronic complaint with the 7 to 1 reduction. This, we consider, is the worst point to overcome in the adopted scheme of brakes. As regards the pedal pressure required to operate the brakes. 35-PK which was sent to WW. was on the light side - some other cars have required definitely more pressure. We consider 35-PK is as light a pedal pressure as desirable. We are hoping the average will require more pressure. We have arranged with the Works not to get too far ahead on the levers fitted with the cams so that we can increase the pressure required if experience decides this is desirable. Hs.{Lord Ernest Hives - Chair} | ||