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).
Requesting top gear ratios for the 20HP and 40/50 models to achieve specific maximum speeds without vibration.
| Identifier | WestWitteringFiles\P\2October1926-December1926\ Scan048 | |
| Date | 8th November 1926 | |
| TO -BA.) FROM R.{Sir Henry Royce} HS.{Lord Ernest Hives - Chair}) Copy to - BJ. " WOR.{Arthur Wormald - General Works Manager} " BY.{R.W. Bailey - Chief Engineer} R3/M8.11.26. ORIGINAL 20HP. & 40/50 GEAR RATIOS. X8310 ----- X5310 X634 We want a top gear ratio suitable for a maximum speed of 100 MPH. on the 40/50., and 80 MPH. on the 20HP., without reaching master period vibration. R.{Sir Henry Royce} | ||