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).
The performance of a Scintilla AM-6-A magneto, which is not meeting specification.
| Identifier | ExFiles\Box 48\2\ Scan148 | |
| Date | 19th July 1924 | |
| To E from EFC. {E. Fowler Clarke - Electrical Engineer} X4187 EFC {E. Fowler Clarke - Electrical Engineer} 2/T19.7.24. SCINTILLA AM-6-A MAGNETO - LEFT HAND ROTATION - SUITABLE FOR EAC.11. X4187 X9790 Further to our EFC {E. Fowler Clarke - Electrical Engineer} 5/T17.7.24, in which we stated we were sending to you a magneto of the above type, No.28533, would you kindly note that the bench performance of this machine is substantially the same as that of a similar type magneto No.34937, reported in our EFC {E. Fowler Clarke - Electrical Engineer} 1/T9.5.24. We have already sent you under cover of our EFC {E. Fowler Clarke - Electrical Engineer} 4/T30.5.24, copy of our specification of performance of magneto for EAC.2 chassis. It has not undergone any material alteration since that time, but in order to complete it we have certain tests to make on annular spark gaps with shunted leaks. The performance of these Scintilla magnetos does not come up to that which we have laid down in the specification. EFC. {E. Fowler Clarke - Electrical Engineer} | ||