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 showing the output speed curves of a dynamo under three different winding configurations.
| Identifier | WestWitteringFiles\W\May1931-August1931\ Scan060 | |
| Date | 1st June 1931 | |
| AMPERE OUTPUT AT CONSTANT OPERATING VOLTAGE OF 14.0 OUTPUT SPEED CURVES OF DYNAMO 1. WITHOUT SERIES FIELD WINDING. 2. WITH SERIES FIELD WINDING ASSISTING MAIN WINDING. 3. WITH SERIES WINDING OPPOSING MAIN WINDING. DYNAMO R.P.M. PH.II CHASSIS M.P.H. WITH 11/41 AXLE & 33.0" TYRE DIA: 40/50 2. C.A.P. 1.6.31 | ||