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).
Secret internal memorandum detailing the results of road tests on front wheel brakes, noting issues with jaggers and torsional effects.
| Identifier | ExFiles\Box 73\2\ scan0050 | |
| Date | 22th October 1923 | |
| X9940 To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} S E C R E T. c.c. to CJ. c.c. to Da.{Bernard Day - Chassis Design} c.c. to BY.{R.W. Bailey - Chief Engineer} c.c. to Rg.{Mr Rowledge} ------------------ HsS/LG22.10.23. ------------------ FRONT WHEEL BRAKES. X9940 We have made a further test on the road with the chassis fitted with front wheel brakes. We found that if we ran the car backwards and applied the brakes, they were ineffective but there were no signs of jaggers. In the forward movement, we still obtain the brake jaggers. By watching the car when the brakes are applied we can observe violent torsional effects on the front springs and axle in the forward direction and very little backwards. Hs.{Lord Ernest Hives - Chair} | ||