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).
Recommendation to simplify valve timing markings on the B.III flywheel to avoid confusion.
| Identifier | ExFiles\Box 100\3\ scan0003 | |
| Date | 19th March 1938 | |
| 454. To By/NS.{Norman Scott} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. By/CS. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}2/AP.19.3.38 B.III. VALVE TIMING. The valve timing markings on the B.III. flywheel (EB.3241) are so close to the TDC. mark, I.O. ½° and E.C. 1½° that it makes a confusion of markings and we would recommend that the single TDC. marking be used for the I.O. and E.C. positions also. Practical checking of valve timing shows that this varies considerably more than the amount we propose to alter it on engines. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||