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).
The performance and condition of Champion and K.L.G. sparking plugs after extensive mileage.
| Identifier | ExFiles\Box 142\3\ scan0078 | |
| Date | 23th December 1936 | |
| 1204. To Rm.{William Robotham - Chief Engineer} c. to Wst. 23.12.36. 22-G-V Sparking Plugs. The car has returned from France with Champion L.B. 10 sparking Plugs fitted. These have completed 6,539 miles without complaint from the testers. We have tried the car here and there is an occasional misfire on pick-up. A set of K.L.G. 850 which were returned with the car had completed 16,339 miles. There was no bog book record to say why these had been taken out/tested here, but they were missing on pick-up. All the plugs have been returned to Wst. for his examination and report. Rm{William Robotham - Chief Engineer}/W.Brazier. | ||