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 memo discussing tests on a car's brake servo with a modified reduction ratio, comparing its performance to a Hispano.
| Identifier | ExFiles\Box 22\1\ Scan177 | |
| Date | 9th May 1924 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. RG.{Mr Rowledge} c. to DA.{Bernard Day - Chassis Design} E.{Mr Elliott - Chief Engineer} c. to BY.{R.W. Bailey - Chief Engineer} Wor.{Arthur Wormald - General Works Manager} 4214 S E C R E T. BRAKES. X.9940 X.4214 We have tested the car fitted with the 'Agreed' scheme with the servo running at 10 to 1 instead of 30 to 1 reduction. We find with this arrangement, the lag is approximately the same as on the Hispano. The only way in which we differ from the Hispano is the question of the pull off springs on the brakes. Hs.{Lord Ernest Hives - Chair} | ||