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 Phantom III rear gearbox mounting.
| Identifier | ExFiles\Box 94\1\ scan0317 | |
| Date | 1st February 1936 | |
| X 328 To E.{Mr Elliott - Chief Engineer} c.c. to Da.{Bernard Day - Chassis Design} c.c. to By.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Les.4/KW.1.2.36. Phantom III Rear Gearbox Mounting. We attach Silentbloc Ltd's drawing F.360106, which shows the rubber we are now using in 32-EX. At the moment this is the most successful rear gearbox mounting. This mounting is similar to N.Sch.4531, only fitted with rubber in a compressed state instead of moulded. The safety ring as shown on N.Sch.4531 to support the gear in a case of complete failure of the rubber, appears to be unnecessary other than as a means of oil protection. Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} | ||