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).
Outlining further experiments and modifications for a 20/25 Dynamo before final approval.
| Identifier | ExFiles\Box 163\6\ img164 | |
| Date | 14th May 1932 | |
| X6016 BY/Rd. From Hs{Lord Ernest Hives - Chair}/Wst. C. to E.{Mr Elliott - Chief Engineer} C. to Wor.{Arthur Wormald - General Works Manager} Hs{Lord Ernest Hives - Chair}/Wst.5/MA.14.5.32. EXPERIMENTAL HALF CHARGE 20/25 DYNAMO TO D.SCH.529. Confirming our discussion on the results obtained it was agreed that in order to ascertain whether any still further improvement could be obtained you would instruct :- (a) A new armature having 8 turns per coil of 17 SWG wire with the slots shortened to suit, thus giving a better iron circuit through the armature teeth. (b) A new set of poles with a standard core section of iron but with the pole tip dia to suit the new car-case. We would rather delay a final decision on the approval or not of this dynamo until these experiments are through. HS{Lord Ernest Hives - Chair}/Wst. | ||