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).
Extract regarding the lengthened Lucas dynamo, specifying the use of a short linked Whittle belt and spring control.
| Identifier | ExFiles\Box 55\2\ Scan139 | |
| Date | 20th April 1921 | |
| x3735 Extract from R4/G20.4.21. RE LENGTHENED LUCAS DYNAMO. X.3735. X.3772. We must see that the short linked Whittle belt is used, and the spring control of the position of the dynamo. | ||