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).
Note on the alignment differences for a sequence motor between two design schemes.
| Identifier | ExFiles\Box 64\2\ scan0172 | |
| Date | 2nd July 1928 | |
| EFC. X7625B 2.7.28. X.7625B. SEQUENCE MOTOR. LeC.2425 first on 2B scheme called for centres to align - the two motors based on this; later scheme LeC.2517 calls for .175 difference in centres and EAC10./SS.{S. Smith} motor has this feature. BY/RD. | ||