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).
Tests and conclusions regarding sideways shake on a Phantom III chassis with different engine mountings.
| Identifier | ExFiles\Box 93\1\ scan0233 | |
| Date | 29th September 1937 | |
| COPY FOR DILES 322 Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} 29.9.37 SIDEWAYS SHAKE ON P.III. -> See 622 With reference to your memo Rm.{William Robotham - Chief Engineer}10/R.2.9.37. asking for particulars of the effect of sideways shake on the P.III. with solid and flexible engine mountings. This test has been carried out on 33-EX. using two methods. The first test was rigged up to give us the difference between body and chassis movement. A rigidly mounted frame was errected in the rear compartment with a spring loaded pencil attached, this marked the movement on a block attached to the roof in the centre of the body, the results obtained show a 10% increase in body movement with the engine mounted solid in the frame. The other method was to run the chrograph fixed in the centre of the rear seat, special tackle with a heavy pendulum lever recorded the total body movement on the strip. By this method no difference could be found between solid and flexible engine mounting. CONCLUSIONS (a) 10% more body movement when recording difference body and chassis. (b) No difference solid or flexible when recording total movement. Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} | ||