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).
Test results for two magnetos, identifying a fault in magneto No. 98034.
| Identifier | ExFiles\Box 43\4\ Scan273 | |
| Date | 7th April 1930 guessed | |
| WE13 (2) contd there is anything wrong with the internal parts. There was found to be, previous to the type test, a discrepancy in the electrical performance of one of these magnetos No. 98034 both on the bench and on the engine. The electrical performance on the bench was therefore checked again after the above examination with the following results:- No. 98033. - OK no appreciable change in performance. No. 98034. misfires in the retarded position at all speeds (using 6' metal braided cables). In all other positions sparking was OK. low speed performance :- advance . 220 r.p.m. 25° retard . 500 r.p.m. Full retard . irregular. These tests show that this magneto is still faulty. H Ewest | ||