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).
Requesting an experiment to test the 40/50 HP clutch with different driven members.
| Identifier | Morton\M11\ img161 | |
| Date | 1st March 1919 | |
| To EH. from E.{Mr Elliott - Chief Engineer} Copy to EFC. ORIGINAL E4/G24/3/19. X.3523A/B RE 40/50 H.P. CLUTCH. Would you kindly note that Mr Royce would like an experiment made to test the 40/50 H.P. clutch with a very light steel driven member in sheet metal carrying the cotton fabric, and also a very light aluminium driven member in sheet metal or casting. E.{Mr Elliott - Chief Engineer} | ||