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).
Wear on a set of sparking plugs and requesting further details on their usage conditions and mileage.
| Identifier | ExFiles\Box 162\5\ img092 | |
| Date | 16th December 1938 | |
| 6001 W/P - sr. Rm{William Robotham - Chief Engineer}/RC.{R. Childs}6/JH.16.12.38. We thank you for your memo. Sr/WHA.1/EB.17.11.38. re the FLB.50.X. type sparking plugs and note that a set has run 14,380 Kms. on chassis B.55.KU. We have now received from your depot, a set of plugs labelled Franco-Britannic, Chassis No.B.6.MR. and note that the earth electrode has worn badly. We would be pleased to receive any information regarding the conditions and mileage to which these plugs have been subjected. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||