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).
Alteration of gear ratios for a second Bentley Bensport model.
| Identifier | ExFiles\Box 86\4\ scan0049 | |
| Date | 1st May 1933 | |
| X728 To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}10/KT.1.5.33. BENSPORT GEAR RATIOS. A road test of the second Bentley has shown that the 3rd. gear is too high. In order to get a ratio between that of this car and the 20/25 box, we suggest altering the constant mesh ratio from the Bentley figure of 36/47 to 35/48. Will you please build up a box to BY/TWD.{T. W. D???Aeith}3/E.15.2.33. but with the constant mesh gear altered as per the attached blueprints. No difficulty will be found in assembling these in the box to GB.428. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||