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 plotting Dynamo ampere output and operating voltage against Dynamo RPM and chassis MPH.
| Identifier | ExFiles\Box 68\4\ scan0025 | |
| Date | 3rd November 1927 guessed | |
| 40/50 AMPERE OUTPUT OPERATING VOLTAGES REPRESENTATIVE OUTPUT CURVE AT 80°C OF STD DYNAMO WITH E.J.B. MODIFICATION SPECIFIED CURVE OF OUTPUT REQUIREMENTS FOR PHANTOM DYNAMO REPRESENTATIVE OUTPUT CURVE AT 80°C OF STANDARD PHANTOM DYNAMO DYNAMO R.P.M CHASSIS M.P.H WITH 15/52 AXLE AND 33.5" TYRE DIA | ||