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).
Report page discussing the characteristics and performance of dynamos, specifically for the 20 HP engine.
| Identifier | ExFiles\Box 51\1\ Scan350 | |
| Date | 3rd March 1924 | |
| Contd. -5- EFC {E. Fowler Clarke - Electrical Engineer} 2/T3.3.24. more overcharging at the high speeds. The cutting in point of these dynamos is very little affected by changes in the output caused by varying the control brush position, and is only about 10 to 15 R.P.M. greater than for the machine arranged as a plain shunt machine. It is therefore easy to form a comparative mental picture of the engine hot performance of the 20 HP. dynamo set to the general specification. EFC. {E. Fowler Clarke - Electrical Engineer} | ||