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 of Champion and K.L.G. sparking plugs after testing.
| Identifier | ExFiles\Box 162\4\ img229 | |
| Date | 23th December 1936 | |
| TO Rm{William Robotham - Chief Engineer} c. to Wst. 6001 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 log 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. RS{Sir Henry Royce's Secretary} Awaiting your report RS{Sir Henry Royce's Secretary}/Pg 1. Rm{William Robotham - Chief Engineer}/W.Brazier. | ||