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).
Extract from a 10,000-mile report on vehicle 18-GIV, detailing a headlamp wiring fault.
| Identifier | ExFiles\Box 166\4\ img082 | |
| Date | 30th January 1931 | |
| X5800 Extract from report on 18-GIV at 10,000 miles dated 30.1.31. X.5800. HEADLAMP AND FITTINGS TO LOP D.51920. SUPPORT TUBE D.51976. 1.375 dia. LUCAS LAMPS CHROMIUM PLATED. The headlamp support tubes have remained firm and are rigid. The headlamps have been satisfactory for night riding. The chromium plating is still in good condition. There is a very bad feature in the wiring up of the headlamps which will cause trouble if not altered. The wire is lead from the conduit through the frame into the bottom recess of the wing stay and then up and into the support tube of the lamp. We found when the wing stay was removed that this recess was absolutely full of grit, which gets in through a drain hole in the wing stay. This grit will chafe the insulation away and cause a short circuit. It would be quite easy to take the wire straight up the tube by drilling a hole in the top side of the frame. | ||