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).
Specification for the clutch damped spring drive settings for car 4.PER.II.
| Identifier | ExFiles\Box 169\3\ img032 | |
| Date | 23th February 1933 | |
| Spec. File RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}6/KT.23.2.33. SPECIFICATION OF 4.PER.II. We have set the clutch damped spring drive in this car to - Driving load 20 lbs.ft. per degree. Damping load 35 lbs.ft. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||