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).
Performance graph for a Launching Winch, comparing a fluid coupling against a normal clutch.
| Identifier | ExFiles\Box 175\2\ img075 | |
| Date | 19th February 1941 guessed | |
| LAUNCHING WINCH. WITH FLUID COUPLING WITH NORMAL CLUTCH PULL IN WIRE, LBS. SPEED M.P.H. | ||