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).
Modifications to the brakes, specifically the low speed servo and pedal pressure issues.
| Identifier | ExFiles\Box 30\6\ Scan181 | |
| Date | 11th August 1924 | |
| R.R. 493A (40 H) (SL 42 12-7-23). J.H., D.{John DeLooze - Company Secretary} ORIGINAL EXPERIMENTAL REPORT. Expl. No. x9910 4214 REF: Hs.{Lord Ernest Hives - Chair}/LG11.8.24. To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. RG.{Mr Rowledge} c. to E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} c. to EY. WOR.{Arthur Wormald - General Works Manager} SECRET. BRAKES. We have had the car running again fitted with the low speed servo. The modifications instructed by RG.{Mr Rowledge} have overcome the fault of the pedal being dragged on and not releasing. We find that the pedal pressure required is considerably greater than that required on the Hispano. We propose measuring the in-put and out-put of the servo. It is possible that we shall find, similar to our experience with plate clutches on the car, the co-efficient of friction is lower than anticipated. Hs.{Lord Ernest Hives - Chair} | ||