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 sheet recording speed, amperage, and voltage readings with 'brushes fully forward'.
| Identifier | ExFiles\Box 3\5\ 05-page238 | |
| Date | 24th May 1919 | |
| R.R. 500 (1208) (SF 349 24-5-19) HSP 200552 90940 ROLLS-ROYCE LIMITED. INSTRUCTIONS. III To __________ Order No __________ Customer's No. H.B.14. Re Brushes fully Forward. | Speed | Amps. | Volts. | |-------|-------|--------| | 580 | 0 | 13.6 | | 600 | .90 | 13.65 | | 640 | 2.30 | 13.80 | | 680 | 3.60 | 14.20 | | 730 | 5.25 | 14.55 | | 770 | 6.65 | 14.80 | | 830 | 8.05 | 15.00 | | 910 | 9.75 | 15.20 | | 965 | 11.0 | 15.30 | | 1170 | 12.8 | 15.40 | | 1295 | 13.45 | 15.40 | | 1490 | 13.70 | 15.45 | Signed __________ This Sheet must be filed on completion of the work. | ||