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).
Analysis of vibrator-controlled dynamo system performance on chassis, based on different customer driving habits and electrical loads.
| Identifier | ExFiles\Box 60\3\ Scan213 | |
| Date | 17th March 1933 | |
| 6092 Ag. From Hs{Lord Ernest Hives - Chair}/Tst. C. to Hcr. C. to PH. C. to By.{R.W. Bailey - Chief Engineer} C. to R.{Sir Henry Royce} C. to EP.{G. Eric Platford - Chief Quality Engineer} C. to Cx.{Major Len W. Cox - Advertising Manager} C. to Mx.{John H Maddocks - Chief Proving Officer} Hs{Lord Ernest Hives - Chair}/Tst.6/WA.{Mr Wallis}17.3.33. VIBRATOR CONTROLLED DYNAMO SYSTEMS ON R.R. CHASSIS. In considering the performance of a vibrator controlled dynamo - battery combination on an automobile it is well to review the extremely varied conditions of running experienced in the hands of different customers. These conditions can be roughly classed as follows:- (a) The man who drives his car habitually at high speeds and in third gear in traffic, and who would drive confidently fast for long periods at night. It is presumed that this man would fit as large headlamp bulbs as possible for maximum speed at night. (b) The man who drives his car at a normal speed and who drives more in the day time than the night, in fact the average type of car owner. (c) The professional man who uses his car for a number of calls day and night continually starting and stopping. The discharge load which might be expected with each of the above customers would be:- Customer (a). Headlamps (assumed 60 watt) 10 amperes. Side and tail (assumed 4 watt standard) 1 ampere. Dual windscreen wiper (lucas) 1.5 ampere. | ||