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).
The selection and fitting of jacks for the Wraith III model.
| Identifier | ExFiles\Box 139\1\ scan0396 | |
| Date | 24th April 1937 | |
| SECRET. 1166 E/Ev.{Ivan Evernden - coachwork}7/M.24.4.37. Copy to [Redacted] Rm.{William Robotham - Chief Engineer} Hde. HPS{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/Grxe Re: JACKS FOR WRAITH III. We are aware that it has been stated that Jack-all-jacks will be used on Wraith III. Since, however, no information or jacks have yet been received, we have decided for the time being to fit the latest standard D.W.S. jacks and pump. The standard rams will go into the same brackets as those for the P.III. type rams. On N.Sch.5127 herewith we show the mounting for the standard D.W.S. jack pump which is very similar to that for the P.III. pump sent to you, but new bracket parts are unavoidable. The pump is so positioned that the handle moves equidistant either side of the vertical. This is essential if the pump is to remain standard. On the same drawing we show the standard Sessions trap door in the latest Wraith III. floorboards to N.Sch.5074/5. This part is much cheaper than that of our original design, and has the advantage that it keeps the pump operating handles from oil and dirt. E/Ev.{Ivan Evernden - coachwork} Att: N.Sch.5127. | ||