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 insulation failures in hot climates and potential improvements to ignition systems.
| Identifier | ExFiles\Box 163\7\ img218 | |
| Date | 5th December 1933 | |
| - 2 - E.10/HP.5.12.33. The other point mentioned by BY.{R.W. Bailey - Chief Engineer} referred to in C.4/C.2.12.33 with regard to magnetos in hot countries was the failure of the H.T. insulation experienced in India on magnetos kept in stock. This however is a risk which might be said to apply to all electrical apparatus according to the insulation employed. We think we have done on the Bentley all that is reasonably necessary at the moment in supplying a spare coil and spare L.T. points. We will certainly take steps to make it more easy to change the coil, but we believe that if any greater facilities are required the proper course is to go right over to dual battery ignition with two sets of sparking plugs, two distributors, and two coils, working off a common battery. As we have said before in our experience we have yet to meet the case where the battery fails to give enough current for ignition for a hand start. E.{Mr Elliott - Chief Engineer} | ||