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).
Internal memorandum regarding an alteration to the castor angle of steering yokes.
| Identifier | ExFiles\Box 100\2\ scan0068 | |
| Date | 13th September 1938 | |
| To. HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} c. Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} 450 Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}2/MH.{M. Huckerby}13.9.38. B.III STEERING. Owing to the increased height of the back end of B.III to give more bump movement the castor angle with the latest yokes is -¾° instead of the intended 0°. We have found on the road that the most satisfactory angle is +¼°. We are instructing the D.O. to alter the details of the yokes to give this angle and to determine whether it is necessary to alter the dies to accommodate it. The dies which are now being produced should be altered if necessary, and all future yokes should be machined to the new angle. We wish to have this angle on 8.B.V. and assume that it will be necessary to send the yokes out to France along with the improved geometry levers. The alteration to the castor angle will also alter the detail of the cross steering lever attached to the stub axles. Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} | ||