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).
Resolution of a design conflict between the swinging arm clutch operation and the control scheme.
| Identifier | ExFiles\Box 124\4\ scan0141 | |
| Date | 30th April 1940 | |
| FILE SECRET. To Rm.{William Robotham - Chief Engineer} from Ev.{Ivan Evernden - coachwork} c.c. to Rm{William Robotham - Chief Engineer}/HH. [crossed out] 1046 Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}1, 6-5-40 Ev.{Ivan Evernden - coachwork}14/JH.30.4.40. Engine Controls to Suit Swinging Arm Clutch Operation. Right Hand Senior Range. We have always understood that there was a foul somewhere between the swinging arm clutch operation design GCD.1499 and the control scheme ECD.1376 but we have never been certain where it existed. When detailing FCD.1500 simplified brake and clutch pedals for use with GCD.1499 the foul was discovered by Rm{William Robotham - Chief Engineer}/HH. By re-arranging the controls on the countershaft on the frame side channel gusset, as shewn on PL.206 (2 prints herewith) we have overcome the difficulty. A measure of cheapening has been achieved by the use of forked rod ends in the place of ball joints. P.T.O. | ||