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).
Index table of 40/50 HP and 20 HP dynamo curves.
| Identifier | ExFiles\Box 51\1\ Scan324 | |
| Date | 26th December 1923 | |
| X. 4383 26.12.23. X.294 X.4383 INDEX TABLE OF 40/50 HP. AND 20 HP. DYNAMO CURVES. | | | 40/50. | 20 HP. | |---|---|---|---|---| | SHUNT | Volt-speed | { Cold | I & III | VII & IX | | | | { Hot. | I & IV | VII & X | | | Amperes-speed | { Cold. | II & V | VIII & XI | | | | { Hot. | II & VI | VIII & XII | | CONTROLLED | Volt-speed | { Cold. | A & AI | B & BI | | | | { Hot. | A & AII | B & BII | EFC. {E. Fowler Clarke - Electrical Engineer} | ||