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).
Requesting the modification of two fan pulleys to overcome belt trouble on an endurance test engine.
| Identifier | ExFiles\Box 94\5\ scan0054 | |
| Date | 4th February 1938 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Std. 324 Rm{William Robotham - Chief Engineer}/Std.11/AP.4.2.38 We hand you herewith two fan pulleys off endurance Ph.III. unit No.6. Will you please modify these to EXS. 351/2 during the night if possible, so that we can refit them to the endurance unit in the monring, in order to have the benefit of the rest of the engine endurance. This modification is necessary to overcome some belt trouble which we are experiencing. Will you please refit fan pulleys when modified. Rm{William Robotham - Chief Engineer}/Std. | ||