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).
Chassis dynamo heating test results for various Lucas and Smith dynamo models.
| Identifier | WestWitteringFiles\E\June1920\ Scan13 | |
| Date | 18th June 1920 | |
| R.R. 199 (250T) (SD676 19-7-17) MP180865 18.6.20. X.3936 - CHASSIS DYNAMO HEATING TEST RESULTS X.294. (Maximum output) (first lot) TABLE DATA: Column Headers: Dynamo, Maximum ampere output (Start, Finish), Initial or ambient temperature, Final temperature (°C) (Thermom, Field coil). Row 1: Dynamo: Lucas E.575 No. X. Maximum ampere output Start: 12.5 Maximum ampere output Finish: 9.5 Initial or ambient temperature: 15 Final temperature (°C) Thermom: 76 Final temperature (°C) Field coil: 128 Row 2: Dynamo: Lucas E.575 No.97. Maximum ampere output Start: 14.6 Maximum ampere output Finish: 11.1 Initial or ambient temperature: 18 Final temperature (°C) Thermom: 74 Final temperature (°C) Field coil: 141 Row 3: Dynamo: Lucas E.575. Maximum ampere output Start: 12.1 Maximum ampere output Finish: 9.3 Initial or ambient temperature: 17 Final temperature (°C) Thermom: 81 Final temperature (°C) Field coil: 102.5 (control coil) Row 4: Dynamo: Smith (T & M) Type A.{Mr Adams} Maximum ampere output Start: 15.1 Maximum ampere output Finish: 11.4 Initial or ambient temperature: 17 Final temperature (°C) Thermom: 81 Final temperature (°C) Field coil: 130. Row 5: Dynamo: Smith (T & M) Type 2D (C) Maximum ampere output Start: 14.7 Maximum ampere output Finish: 9.4 Initial or ambient temperature: 17 Final temperature (°C) Thermom: 81 Final temperature (°C) Field coil: 137 EFC. | ||