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 detailing battery current changes and dynamo commutator condition.
| Identifier | ExFiles\Box 168a\3\ img106 | |
| Date | 11th July 1938 | |
| -2- RM{William Robotham - Chief Engineer}/RC.{R. Childs}1/JH.11.7.38. Test (3) At the end of the run, the current going into the battery with only the ignition and petrol pumps on, had risen to 16 or 17 amperes. This was mainly due to the increased temperature of the regulator. After standing for a while, the engine was again run and the charging current checked, when it was found to have fallen to 12 amperes. Finally the commutator of the dynamo was again examined, and found to be practically unaltered. RM{William Robotham - Chief Engineer}/RC.{R. Childs} | ||