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).
Test results for a Smith Dynamo showing output Amperes and Volts at various speeds.
| Identifier | ExFiles\Box 3\5\ 05-page256 | |
| Date | 19th May 1920 | |
| R.R. 500 (12/18) DFP 349 24.3-19_ PSP 200512 90949 ROLLS-ROYCE LIMITED. INSTRUCTIONS. I To: M^c Clark Customer's No.: H/B23. 19/5/20 Re: Smith Dynamo. out put fully hot 80°C 2D(2). Speed | Amperes | Volts 510 | 0 | 13.1 550 | 1.40 | 13.2 610 | 3.25 | 13.6 665 | 4.95 | 13.8 760 | 7.05 | 14.2 850 | 8.25 | 14.4 920 | 8.95 | 14.6 975 | 9.25 | 14.6 1130 | 8.95 | 14.55 1250 | 8.70 | 14.55 1470 | 8.50. | 14.5 (Cont.d) This Sheet must be filed on completion of the work. See 7B77. 4/6/20 for improved figures plotted. Hot day | ||