Modifying the switchbox for the Phantom III and 25/30 chassis to simplify the ignition switch.
| Identifier | ExFiles\Box 168a\1\ img042 | |
| Date | 24th June 1936 guessed | |
| (sheet 2) It should also be pointed out that with this additional charge a master switch is provided in the switchbox, a feature which we are constantly having to refuse when customers ask for same. The 400 sets of material at present on order carry us on to the end of "M", so that what we are asking is for authority to make this change at the beginning of "N" series, the material of which should be now put on order. The changes in the Phantom III switchbox to make it suitable for the 25/30 chassis merely amounts to leaving out something to enable the ignition switch to show just "off" and "on" instead of including the extra positions for the "A" and "B" ignitions. It is hereby confirmed that you have definitely approved this policy, and we should be glad if hs. {Lord Ernest Hives - Chair} would issue a standardisation sheet covering the modification. The scheme showing the switchbox modification- RR.939 is being issued forthwith. E. {Mr Elliott - 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).