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).
Trial for a new slipper wheel damper on a Wraith engine.
| Identifier | ExFiles\Box 6\6\ 06-page424 | |
| Date | 24th January 1938 | |
| 600 To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} c. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}1/AP.24.1.38 WRAITH ENGINE With regard to the attached sketch by HPS{Horace Percy Smith - Experimental Factory Mgr}/RB.{R. Bowen} we should like to try this slipper wheel on one of the Wraith cars. It has an inertia of 3 times the existing damper. Will you please put in hand one such damper, only necessitating one new piece. The timing case can be hand made. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||