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).
Recurring headlamp bulb failure likely caused by a loose bulb holder and vibration.
| Identifier | ExFiles\Box 162\1\ img057 | |
| Date | 4th February 1938 | |
| -2- Rm{William Robotham - Chief Engineer}/RC.{R. Childs}1/JH.4.2.38. (5) This customer is in the habit of riding with his headlamp in the dipped position: the bulb in the nearside lamp had blown on various occasions. This probably is due to the bulb holder which is a loose fit with the bayonet cap of the bulb, allowing vibration to shorten the life of the bulb. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||