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).
Magneto, its automatic advance, and starting handle mechanism.
| Identifier | WestWitteringFiles\L\Jan1924-March1924\ Scan120 | |
| Date | 9th February 1924 | |
| R.R. 493A (40 H) (SL 42 12-7-23). J.H. D.{John DeLooze - Company Secretary} -2- Expl. No. 9040 REF: Hs{Lord Ernest Hives - Chair}/L/91.2.24. EXPERIMENTAL REPORT. Magneto. This magneto is quite a well-made machine and it has an automatic advance suitable for the engine. Therefore it might be useful to use until we have developed a scheme of our own. The machine as arranged has 23° hand control - 30° automatic control. If we set it to fire 10° before the T.D.C. retard, it will suit the engine. The starting handle operates on a pin at the end of the crankshaft which only gives us two positions. Although this scheme works well on the 20 HP., with this big engine it would be very much better with 3 starts. Hs.{Lord Ernest Hives - Chair} | ||