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).
Instructing to proceed with the trial of Ph.III valve seat inserts for the S/SLV model.
| Identifier | ExFiles\Box 96\2\ scan0260 | |
| Date | 20th October 1937 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Swdl{Len H. Swindell} Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}1/AP.20.10.37. Ph.III. VALVE SEAT INSERTS. Re the trial of valve seat inserts in S/SLV., it has been decided to go forward with this experiment. In order to keep the cost as low as possible these seats should be fitted to one head only. We understand that there is a part machined head which has not had the seats fitted as yet and which is an experimental spare head. When the detail drawings for the new S/SLV seats are issued will you please instruct sufficient for fitting in the above mentioned head. It can then be allocated either for use on a test bed unit or a car whichever is most convenient. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||