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).
The fine adjustment of magneto timing via the serrated drive on the dynamo shaft.
| Identifier | ExFiles\Box 65\1\ scan0037 | |
| Date | 23th December 1924 | |
| R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D. -4- EXPERIMENTAL REPORT. Expl. No. REF:Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}/LG23.12.24. just sufficient range. This means that in the fully retarded position, the magneto sleeve has to be set against its extreme retarding stop. The only fine adjustment remaining therefore is the serrated drive on the dynamo shaft. The teeth on this drive however only allow the magneto to be set to 6°. It is therefore possible in the extreme cases, the variation between the battery and magneto will be 3° on the flywheel. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||