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).
Confirming the possibility of receiving a minor shock from the magneto switch knob.
| Identifier | ExFiles\Box 65\2\ scan0033 | |
| Date | 28th May 1929 | |
| X 7730 By. {R.W. Bailey - Chief Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} c. By {R.W. Bailey - Chief Engineer} /RD. c. By {R.W. Bailey - Chief Engineer} /HEB. {H. Biraben} EFC {E. Fowler Clarke - Electrical Engineer} 7/AD28.5.29. X.7730. S.S. SWITCHBOX. MAGNETO SWITCHING. X.8791 Further to our EFC {E. Fowler Clarke - Electrical Engineer} 3/D28.5.29, we have now confirmed the possibility of receiving a shock from the magneto switch knob when the main switch lever is in the M & C position (and only in that position), but we have confirmed that this shock is scarcely of a sufficiently disagreeable magnitude as to warrant an elaborate change to the magneto auxiliary switch. The shock, of course, only occurrs when the magneto switch is put off position, thus the position would not be normally occupied. EFC. {E. Fowler Clarke - Electrical Engineer} | ||