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).
Performance graph for a Lucas C.5 12V dynamo, plotting ampere output and voltage against RPM and vehicle speed.
| Identifier | ExFiles\Box 36\4\ scan 273 | |
| Date | 30th May 1930 | |
| 49/50. LUCAS C.5. 12V. DYNAMO 30/5/30 FULL OUTPUT (COLD) DYNAMO AMPERE OUTPUT OPERATING VOLTAGE AT 15.5 DYNAMO VOLTS DYNAMO VOLTS. DYNAMO R.P.M. S.S. CHASSIS M.P.H. WITH 11/41 AXLE & 33.0" TYRE DIA. | ||