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).
Letter to Scintilla Ltd. concerning the specifications for an AM6-A magneto.
| Identifier | ExFiles\Box 48\2\ Scan046 | |
| Date | 4th February 1924 | |
| X 4187 EFC {E. Fowler Clarke - Electrical Engineer} 3/LG. 4th. Feb. 1924. Messrs. Scintilla Ltd., Wellington House, Buckingham Gate, London, S.W.1. Dear Sirs, RE. AM6-A SCINTILLA MAGNETO. Answering your letter of the 2nd. inst. in which confirmation of our telegram attached. We note that it is not possible for you to alter the direction of rotation of the above Magneto, and that neither is it possible for you to supply a control spring which would cause the full amount of automatic advance to be obtained at 2500 R.P.M. We would like you, as you suggest, to submit the particulars to your Factory and ascertain whether they can supply a suitable Magneto, the particulars being :- (1) Anti-clockwise - direction of rotation of Magneto view on pulley end. (2) Magneto to have an automatic advance commencing in the neighbourhood of 300 R.P.M. and attaining a maximum advance of from 32 to 35° at a speed of 2500 R.P.M. Yours faithfully, | ||