Analysis on the possibility of using Wraith type tappets on the Phantom III engine and a suggestion to test the dimensions.
| Identifier | ExFiles\Box 96\2\ scan0282 | |
| Date | 17th January 1938 | |
| Ey. from Rm. {William Robotham - Chief Engineer} c. Da. {Bernard Day - Chassis Design} Da {Bernard Day - Chassis Design} /Jnr. {Charles L. Jenner} Ey/McStay. Rm {William Robotham - Chief Engineer} /Swdl. {Len H. Swindell} 35H Rm {William Robotham - Chief Engineer} 8/R.17.1.38. SIMPLIFIED P.III VALVE GEAR. Herewith an analysis that Bowers has carried out to determine possibility of Wraith type tappets on the P.III. I think we should try the dimensions out on a rig when we have time to get at it. Ultimate objective, simplified P.III engine. Rm. {William Robotham - Chief Engineer} | ||
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).