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 showing dynamo ampere output and operating voltage against RPM and chassis speed.
| Identifier | ExFiles\Box 62\3\ scan0062 | |
| Date | 30th August 1930 guessed | |
| AMPERE OUTPUT APPROX: OPERATING VOLTAGE. DYNAMO R.P.M. CHASSIS M.P.H. ¹¹/₅₀ AXLE. 31·4" DIA. TYRES. I - SET AT 12V - 10A AT 80°C II - SET AT 12V - 8A AT 80°C OUTPUT ON F.R.12.E DYNAMO NO KL1 4" DIA. ARMATURE ON CHASSIS TEST I - DYNAMO TEMP. 80°C II - FIELD COILS 80°C | ||