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).
Graph illustrating the pressure plate loading against RPM for a 10 CF clutch.
| Identifier | ExFiles\Box 130\3\ scan0153 | |
| Date | 30th December 1940 | |
| 10 CF CLUTCH. FOR 3/8" LEVER DSH(?) FLUTTER LOAD FOR 1/4" DIA HOLE THRU' LEVER WEIGHTS GRAPH N° 3 R.P.M. PRESSURE PLATE LOADING DUE TO CENTRIFUGAL EFFECT. 800 700 600 500 400 300 200 100 1000 2000 3000 4000 Rm{William Robotham - Chief Engineer}/6/B | ||