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).
Graph of output speed curves showing the effect of series winding excited by headlamp current on a standard machine.
| Identifier | ExFiles\Box 60\4\ Scan094 | |
| Date | 2nd September 1931 | |
| 40/50 AMPERE OUTPUT AT CONSTANT OPERATING VOLTAGE OF 14.0 OUTPUT SPEED CURVES SHOWING EFFECT ON STANDARD MACHINE OF SERIES WINDING EXCITED BY HEADLAMP CURRENT A.{Mr Adams} WITHOUT SERIES WINDING B. WITH SERIES WINDING SUPPLIED THROUGH 36 WATT LAMPS C. " " " " 60 " " 58 C° SETTING C. B. A.{Mr Adams} C.A.P. 2.9-31 DYNAMO R.P.M. P.II CHASSIS M.P.H. WITH 11/41 AXLE & 33.0" TYRE DIA: | ||