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).
Proposal to adapt the Phantom switchbox for battery and magneto ignition, including a diagram of new switch markings and functions.
| Identifier | WestWitteringFiles\P\July1926-September1926\ Scan010 | |
| Date | 5th July 1926 | |
| TO-MR. [ILLEGIBLE] FROM R.{Sir Henry Royce} C. to [ILLEGIBLE] ORIGINAL R2/M5.7.26. re. PHANTOM SWITCHBOX X8730 X8791 With a view to adapting the Phantom switch-box to run on battery and magneto ignition with no charge, I am proposing that the magneto should be on all the time except for the zero position. The switchbox markings will then appear as follows:- --- M.{Mr Moon / Mr Moore} & C. Object: to test if magneto ignition OK. --- M.{Mr Moon / Mr Moore} B. & C. Object: both ignitions & charge. --- M.{Mr Moon / Mr Moore} & B. Object: both ignitions but no charge. X8791 This alteration can be accomplished very easily I believe, merely shortening the magneto switch. The idea is also to provide a separate small switch for earthing the magneto, with the object that the battery ignition can be tested. R.{Sir Henry Royce} | ||