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).
Standardisation of the 28 slot armature for the 20 HP dynamo.
| Identifier | ExFiles\Box 165\6\ img087 | |
| Date | 21th June 1927 | |
| To EY/RD. from EFC. V5661 EFCL/T21.6.27. X.5661. 20 HP. DYNAMO WITH 28 SLOTS Now that we have standardised the 28 slot armature for the 20 HP. dynamo, punched plates should again be considered, for this machine. EFC. | ||