Table showing dynamo output in Amps at various speeds (M.P.H.) for warm and hot conditions with lights and wiper active.
| Identifier | ExFiles\Box 11\3\ 03-page431 | |
| Date | 12th July 1931 | |
| L 87941. 25-EX. DYNAMO OUTPUT. WITH HEAD, SIDE, TAIL, FACIA, WIND SCREEN WIPER AND BODY LIGHTS. WARM. M.P.H. | AMPS. 10 | - 12.50 20 | - 1.50 27 | Balanced 30 | .50 40 | - 1.50 50 | - 3.0 60 | - 3.5 70 | - 4.0 80 | - 5.00 HOT. M.P.H. | AMPS. 10 | - 12.0 20 | - 3.50 30 | - 2.0 40 | - 2.5 50 | - 3.0 60 | - 4.0 70 | - 4.0 80 | - 5.0 | ||
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).