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).
The silent second speed on the 40/50 HP chassis, noting the need to double clutch.
| Identifier | ExFiles\Box 15\5\ Scan375 | |
| Date | 4th May 1933 | |
| To Cx.{Major Len W. Cox - Advertising Manager} From Hs.{Lord Ernest Hives - Chair} Y 310. Hs.{Lord Ernest Hives - Chair}6/MJ.4.5.33. Re. 40/50 HP. Chassis - Silent Second Speed. Replying to Cx.{Major Len W. Cox - Advertising Manager}1/KW.3.5.33. To make a silent change on the new second speed it will be necessary to double clutch. The engagement is easier than the present second speed but there is no synchro mesh device on it. 18-G4. fitted with this is calling at Conduit St.{Capt. P. R. Strong}, tomorrow morning and we recommend that you make a point of trying this car when you will be able to appreciate the difference between the present standard car. Hs.{Lord Ernest Hives - Chair} | ||