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).
Investigation into voltage loss in the headlamp wires of a Phantom II vehicle.
| Identifier | ExFiles\Box 61a\2\ scan0120 | |
| Date | 17th September 1931 | |
| X1357. BY/Cgh.{W Clough} c. Hs{Lord Ernest Hives - Chair}/Mr. West. EP{G. Eric Platford - Chief Quality Engineer}8/H17.9.31. X6082 X1357 re. Phantom II. 40-GX. Mr. Fox. Loss in Voltage - Head Lamp Wires. With reference to yours BY/Cgh{W Clough}8/G.11.9.31, we cannot say that this is the first we have heard of any suggestion that head lamp wires cause a drop in the voltage. This has been raised on previous occasions, in one case I believe by Mr. Salamanca, and I understand that a test was undertaken and reported on by the Experimental Department. The case was also investigated by Mr. Davies and a demonstration was made in the Test Dept. that when using the standard 36 watt headlamps there was a drop of .2 volts. This with 60 watt bulbs would be increased practically 100%. This case certainly seems to be one which should be dealt with and a report made out pointing out that there is nothing in it or that there is ground for complaint and some alteration is being made to overcome it. EP.{G. Eric Platford - Chief Quality Engineer} | ||