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).
Instructing for experiments on dynamo field coil windings of reduced gauge for 20 HP and Phantom models.
| Identifier | ExFiles\Box 165\6\ img232 | |
| Date | 13th December 1929 | |
| Ev.{Ivan Evernden - coachwork} from EFC. c. by/RD. X6007. EFC7/AD13.12.29. X.6007 20 HP. AND PHANTOM DYNAMOS. X.6008 FIELD COIL WINDINGS OF REDUCED GAUGE. In connection with the question of dynamo output, we are anxious at this stage to try field windings of one gauge smaller getting in as usual the maximum number of turns reasonably possible. Will you therefore please instruct an experimental set of field coils for each of the present standard 20 HP. and Phantom carcases these to be duly fitted to carcases already in our possession. The experiments of these will be mainly tried with armatures of the intermediate output type EFC. | ||