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).
Investigation into a composite fan pulley for the Phantom III, detailing potential cost savings.
| Identifier | ExFiles\Box 94\5\ scan0021 | |
| Date | 30th November 1936 | |
| COPY. Rm{William Robotham - Chief Engineer} from G/Rb.{R. Bowen} G/Rb.{R. Bowen}22/M/72/W.30.11.36. Phantom III Fan Pulley - Section 5220. Rm{William Robotham - Chief Engineer}/Std.5/AP.27.11.36. We have investigated the suggested composite type of fan pulley, consisting of a 2 Dished Nickel steel pressings spot welded together, as shown on Drawing SK.5028, and estimate that the saving in Factory cost over the present type of Pulley, which is a machined forging, would amount to at least 1/6 per chassis. G/Rb.{R. Bowen} | ||