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 table for chassis dynamo heating under maximum output conditions.
| Identifier | ExFiles\Box 36\4\ scan 073 | |
| Date | 8th June 1920 | |
| 8.6.20. CHASSIS DYNAMO HEATING TEST RESULTS. (Maximum output). (Second lot). Dynamo. | Maximum Amp. output | Initial or ambient temp: | Final temperature(oC) | Remarks. | Start. | Finish. | | Thermometer. | Field coil. | ------------------------------------------------------------------------------------------------ Lucas E.575 No.1341. | 12.8 | 10.7 | 18 | 83 | 139 | Makers setting. ------------------------------------------------------------------------------------------------ | 15.2 | 12.9 | 14 | 83 | 150 | Advanced control. ------------------------------------------------------------------------------------------------ Lucas C.575. | 10.4 | 8.4 | 14 | 78 | 109 | Makers setting. ------------------------------------------------------------------------------------------------ | 14.1 | 10.35 | 20 (14) | 93 (84) | 120.5 | Advanced control. ------------------------------------------------------------------------------------------------ Smith (T & M) 2D(2) | 13.2 | 9.1 | 14 | 80 | 103 | Makers setting. ------------------------------------------------------------------------------------------------ | 15.3 | 11.2 | 14 | 85 | 123 | Advanced control. ------------------------------------------------------------------------------------------------ | 16.1 | 10.8 | 14 | 86 | 132 | Fully advanced control SFC. | ||