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).
Proposal for an experimental modification involving 20 SWG field winding to improve a machine.
| Identifier | ExFiles\Box 60\3\ Scan186 | |
| Date | 25th January 1933 | |
| correspondingly increased and the available space filled up with 20 SWG. field winding. We consider this will still further improve the machine and we should be glad if you will agree to an experimental modification put in hand as soon as possible. | ||