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).
Suitability of Large A.400 Lucas Dynamos compared to the standard E.575.
| Identifier | ExFiles\Box 36\4\ scan 209 | |
| Date | 6th May 1921 | |
| X 3014b. To EY. from EFC. EFC9/T6.5.21. X.3014a - LARGE A.400 LUCAS DYNAMOS. In answer to yours Ey2/F6.5.21, we have two of these machines in the Expl. Dept. which will be available for this purpose. Although in the later stages, i.e. at high speeds, the output would not be materially more than with the standard E.575, on account of the cutting in point being so much earlier and the peak output rather larger, this dynamo would be capable of supplying a much greater demand than our standard E.575. We aretherefore of the opinion that this would be very suitable in this particular case. EFC. | ||