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).
Report on standardising the dynamo on the Phantom III model, considering its cutting-in speed.
| Identifier | ExFiles\Box 168a\3\ img477 | |
| Date | 10th March 1938 | |
| R.C. 6142. By, from Rm.{William Robotham - Chief Engineer} By/RbD. Rm{William Robotham - Chief Engineer}6/R.10.3.38. Attached is a copy of the report on the dynamo which it is proposed to standardise on the P.III. It does appear from the lower cutting-in speed that it is essential to run the dynamo at 1 1/4 engine speed, otherwise customers in London traffic may actually be worse off than at present, particularly if they use the overdrive continuously. Rm.{William Robotham - Chief Engineer} | ||