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).
Accompanying curves of brake efficiency tests and slot diagrams for various starter motors.
| Identifier | ExFiles\Box 61b\3\ scan0160 | |
| Date | 3rd May 1923 | |
| X. 543. 86027. To E.{Mr Elliott - Chief Engineer} for Mr. Stent. EFC4/T3.5.23. Herewith please receive as requested various sets of curves of brake efficiency tests of different starter motors, together with further slot diagrams, these referring to the three armatures originally made for the 40/50 starter motor. The two slot diagrams on white paper are the suggested slot design for experimental RR. dynamo made from starter motor parts. EFC. Enc. | ||