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).
The urgent provision of a quieter 20 HP, 28-slot dynamo armature due to issues with silence on the chassis.
| Identifier | ExFiles\Box 165\6\ img054 | |
| Date | 10th January 1927 | |
| To RHC.{R. H. Coverley - Production Engineer} from EFC. X5661 EFC2/T10.1.27. 20 HP. DYNAMO- 28 SLOTS. X.5661. I think it may be considered that the provision of more armature of this type, in view of their silence possibilities, is our most urgent job at the moment. There is considerable difficulty at present in regard to 20 HP. dynamos passing for silence on the chassis. EFC. | ||