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).
Amendment to a requirement memorandum concerning the design of a launching winch.
| Identifier | ExFiles\Box 175\2\ img066 | |
| Date | 19th February 1941 guessed | |
| COPY. Amendment to Requirement Memorandum Launching Winch. -------------------------------- 8. The drum should have a brake to slow it down. Such brakes have been found liable to snatch, and a spring assisting its application has been found to prevent this. The brake should have a ratchet so that it can be left on. 9. It may be desirable to brake the cable lightly at the lead in so that it does not overrun loosely on to the drum. * Para. 9 and 10 on the requirement memorandum will become para. 10 and 11 respectively. Add to para. 5. The design should if possible allow for the maximum speed being increased to 85 m.p.h. without extensive reconstruction. There would be a corresponding reduction in the pull. | ||