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).
Change of clutch and pilot bearing specification following whirling tests.
| Identifier | ExFiles\Box 83\1\ scan0133 | |
| Date | 22th June 1936 | |
| To RHC.{R. H. Coverley - Production Engineer} X200a (r) Hs{Lord Ernest Hives - Chair}/Smth.1/KW.22.6.36. 6-B-IV. Following our whirling tests at Ferodo with No.6 material, we would prefer to fit a standard 11" clutch to this car instead of the 10" with stronger springs and No.6 facings we asked for previously. We shall still require the alternative lever Rm.{William Robotham - Chief Engineer}159. Will you please fit the type LJ25-Z pilot bearing taken out of B-56-BN.{W.O. Bentley / Mr Barrington} Hs{Lord Ernest Hives - Chair}/Smth. | ||