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).
Examination of a stiffened clutch pressure plate's performance after testing.
| Identifier | ExFiles\Box 93\3\ scan0097 | |
| Date | 6th April 1936 | |
| To E.{Mr Elliott - Chief Engineer} c. to Ey. c. to Da.{Bernard Day - Chassis Design} c. to Hdy.{William Hardy} X 312 Hs{Lord Ernest Hives - Chair}/Smth.9/JH.6.4.36. Ph.III - Stiffened Clutch Pressure plate. We have had an opportunity of examining the stiffened pressure plate in 32-EX after running about 1,500 miles, including clutch tests, on Green Bank. There is no measurable distortion. We have had an old type pressure plate which had been stress released prior to final gridding running in 33-EX. This distorted by .007, so that it appears we were justified in adopting the thicker plate. Hs{Lord Ernest Hives - Chair}/Smth. | ||