The use of 3.5 volt instrument board lamps and the requirement for road testing before standardisation.
| Identifier | ExFiles\Box 168a\1\ img088 | |
| Date | 11th June 1937 | |
| By {R.W. Bailey - Chief Engineer} /HD. {Mr Hayward / Mr Huddy} from Rm {William Robotham - Chief Engineer} /Wst. c. E. {Mr Elliott - Chief Engineer} 6135 Rm {William Robotham - Chief Engineer} /Wst.4/AP.11.6.37 USE OF 3.5 VOLT INSTRUMENT BOARD LAMPS. We have no objection to the use of these lamps but it has occurred to us that as we have no experience of the life of the filaments under actual use on the car, we should much prefer to do the usual road testing before actually recommending the modification for standardisation. It is understood you are modifying the design of the bulb holder as shewn on RR.1041 which we have criticised. Handwritten: R.C. arrange for cars to be fitted. Rm {William Robotham - Chief Engineer} /Wst. | ||
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).