Cost savings of using similar brush holder parts versus the technical efficiency of narrower brushes for a starter motor.
| Identifier | ExFiles\Box 64\2\ scan0017 | |
| Date | 5th January 1927 | |
| X7625 To AJS. from EFC. {E. Fowler Clarke - Electrical Engineer} EFC {E. Fowler Clarke - Electrical Engineer} 4/T5.1.27. EAC.7 STARTER MOTOR Answering your AJS3/M24.12.26, I understand the main object of the suggestion is to enable similar brush holder parts to be used, thus resulting in saving. From a purely technical point of view there may be a very slight advantage in the narrower brushes in the efficiency of the motor, otherwise there is practically nothing in it. Therefore, it is a question as to whether the slight lengthening of the motor would cut out any saving gained by having the brushes the same. EFC. {E. Fowler Clarke - Electrical Engineer} | ||
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).