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 electrical equipment for the Goshawk II, discussing the dynamo switch placement and a redesigned combined ignition and lighting switch.
| Identifier | WestWitteringFiles\G\October1921\ Scan59 | |
| Date | 14th October 1921 | |
| To HS.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} Copy to CJ. " " EPC. " " EX. ORIGINAL R1/G13/10/21. 19 X.4421 X.4410. X.4081 RE "GOSHAWK II" ELECTRICAL EQUIPMENT. Regarding the electrical equipment, we find it necessary to put the automatic dynamo switch on the distributing board. This will increase the size of the distributing board, but as we cannot get it on the dynamo without getting in the way of the adjustment of the valve tappet, we find this position to be the most satisfactory. With reference to the switch, we sent you at the end of September, the design of the lockable combined ignition and lighting switch with a press button for the dashboard light, and the connection socket for the inspection lamp. We find, however, on applying it to the instrument board, that it looks rather large, and we should, if we were redrawing the job, reduce the linear dimensions about 10%. Can you carry this out at Derby ? R.{Sir Henry Royce} RECEIVED F C 14 OCT 1921 | ||