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).
Use and potential modification of Goshawk electrical equipment, specifically the dynamo, for the 40/50 HP chassis.
| Identifier | ExFiles\Box 51\2\ Scan089 | |
| Date | 8th August 1922 | |
| To R. {Sir Henry Royce} from Hs. {Lord Ernest Hives - Chair} c. to CJ. c. to E. {Mr Elliott - Chief Engineer} c. to Da. {Bernard Day - Chassis Design} c. to BY. {R.W. Bailey - Chief Engineer} c. to EP. {G. Eric Platford - Chief Quality Engineer} c. to Wor. {Arthur Wormald - General Works Manager} y4338 X.4165 - 40/50 CHASSIS. X.4338 ELECTRICAL EQUIPMENT. y3461 It will be necessary at no distant date, to order up fresh material for some parts of the 40/50 HP. chassis. We consider that we should not go on perpetuating the present electrical equipment on the 40/50 now that we have got something much better of our own design on the Goshawk. It would appear inconsistent for us to fit our own electrical equipment to the smaller car and to buy outside equipment for the more expensive large car. Except for one or two minor modifications it is difficult to see why most of the electrical equipment designed for the Goshawk could not be used on the 40/50. DYNAMO. The requirements as regards lighting load and ignition load are identical on the two cars. The starter load would be greater on the 40/50 especially with a cold engine. We consider this would be provided for by the larger battery. The dynamo revs. per mile are greater on the Goshawk so that it might mean modifying the present Goshawk generator. If this could be done by lengthening it, a great number of existing parts could still be used. You will remember that owing to the modification of the winding we have saved an appreciable amount of end room on the machine which might be used to increase the output with the present carcase. There is no reason why our gre generator could not be driven by a contd:- | ||