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 comparing the output curves of 40/50 Standard and Bosch dynamos.
| Identifier | WestWitteringFiles\W\September1931-November1931\ Scan098 | |
| Date | 19th November 1931 | |
| AMPERE OUTPUT BOSCH NIGHT OUTPUT R.R. DAY OUTPUT R.R. NIGHT OUTPUT BOSCH DAY OUTPUT OUTPUT CURVES OF 40/50 STANDARD AND BOSCH DYNAMOS NIGHT OUTPUT AT 14.0 VOLTS. DAY OUTPUT AT SCHEDULE VOLTAGES. TAKEN AT 80°C. DYNAMO R.P.M. S.S. CHASSIS M.P.H. WITH 11/41 AXLE & 33.0" TYRE DIA: C.A.P 19-11-31 REC'D | ||