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 log sheet recording performance data for various motors, including torque, current, and speed.
| Identifier | ExFiles\Box 70\4\ scan0165 | |
| Date | 16th July 1929 guessed | |
| -2- | Date | Motor design | (8) Brake torque 20 to 35 lb-inches | Current 13 to 15 amperes | (9) Brake torque >900 lb-ins | Speed | (10) Remarks | (11) Remarks | (12) Torque lb-ins 50-250 | 13 & (14) Remarks | |---|---|---|---|---|---|---|---|---|---| | 18 July '29 | WJ95 | 36.0 | 13.0 | 1020 | 950 | OK | OK Noise mod. | 142.0 | OK | | 18 July '29 | FA35 | 35.2 | 13.0 | 1044 | 911 | OK | OK Noise slight | 142.5 | OK | | 19 July '29 | FA45 | 46.5 | 13.0 | 1020 | 900 | OK | OK noise mod. sl. bouncing | 139.5 | OK | | 19 July '29 | FA55 | 40.0 | 14.0 | 960 | 910 | OK | OK Noise mod. sl. bouncing | 138.0 | OK | | 19 July '29 | FA65 | 36.8 | 13.0 | 1031 | 900 | OK | OK noise moderate | 174.0 | OK | | 19 July '29 | FA75 | 27.0 | 13.5 | 996 | 950 | OK | OK slight knock, sharp on wheel & shock | 187.0 | OK | | 19 July '29 | FA85 | 21.75 | 13.75 | 1020 | 900 | OK | OK & quiet | 143.3 | O.K. | | 20-7-29 | C.D.15. | 59.3 | 13.6 | 972 | 960 | O.K. | O.K. Moderate | 122.3 | O.K. | | ||