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 design requirements for motor windings to handle engine starting and compression.
| Identifier | ExFiles\Box 64\1\ scan0109 | |
| Date | 20th March 1923 | |
| Contd. -2- EFC3/T20.3.23. be capable of rolling the engine in the normally cold condition, and then the motor windings must be designed to give this speed and to have such a good acceleration that the engine cannot run away from it over compression. EFC. | ||