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).
Dynamo performance and modifications to avoid overcharging batteries at high speeds.
| Identifier | WestWitteringFiles\W\May1931-August1931\ Scan076 | |
| Date | 7th March 1931 | |
| ORIGINAL: To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} c. FM. E.{Mr Elliott - Chief Engineer} c. Dn. HV. Hel/ADW.7.3.31. X6008 X6126 X6099. DYNAMO PERFORMANCE. We believe at the moment that we may be over-doing the question of maintaining full charge at high speeds which may affect battery life and which will mean the battery will need more attention as regards filling up with electrolyte. We have supplied well over 100 customers who complained of the original dynamo output with a machine which gave an output slightly less than No.1 curve on the attached print. We have never had a single complaint from customers with these modified machines. The latest modification with a finer field winding gives us an alternative in the case of a very exceptional customer, but our own opinion is that it is not required as standard. Hs.{Lord Ernest Hives - Chair} | ||