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).
Clutch testing procedures under known load and slipping speed.
| Identifier | ExFiles\Box 74\2\ scan0233 | |
| Date | 8th July 1929 guessed | |
| - 4 - This will give an accurate record under known load and slipping speed, of the heating of the clutch and of the change in coefficient of friction, after a certain time of operation. The test should be repeated for each of the four clutch arrangements. The work should be charged to D-3717. OY. Maurice Olley | ||