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).
Proposal for a three-charge dynamo scheme on the 20/25HP model, including suggestions for re-engraving the switch case.
| Identifier | ExFiles\Box 163\6\ img173 | |
| Date | 16th June 1932 | |
| X6016 By.{R.W. Bailey - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Wst. c. to E.{Mr Elliott - Chief Engineer} c. to WCr. Hs{Lord Ernest Hives - Chair}/Wst.3/MA.16.6.32. 20/25HP THREE CHARGE SCHEME ON DYNAMO. Referring to E5/HP11.6.32., dealing with the proposal for a three charge dynamo scheme on the 20/25HP we should be glad if you will arrange to instruct, experimentally a new 20/25HP switchbox arranged to excite and insert one stage of resistance in the dynamo field winding in the first position along with the ignition switch and a second stage resistance in the second position. The switch case will require reengraving we suggest as follows :- (a) First position. I & C WINTER. (b) Second position I & C SUMMER Hs{Lord Ernest Hives - Chair}/Wst | ||