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).
Use and comparison of American Champion and Lodge spark plugs.
| Identifier | ExFiles\Box 33\3\ Scan084 | |
| Date | 4th October 1920 | |
| R.R. 100 [40M?] (SD6/6 19-7-07) MP 180805 To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} -2- Hs{Lord Ernest Hives - Chair}7/LG4.10.20. Contd. we can despatch cars - some with one make and some with another; the same with the battery. We think this will help us to obtain the best possible parts. It means that we shall have a competition between two suppliers and that we shall obtain the experience of thousands of plugs over thousands of miles to help us to arrive at which is the best. <s>X4196</s> X.3905. The America Champion Sparking Plugs we find are quite good. They have solely porcelain insulators. The porcelain used on the Champion plug is more reliable than the average. The appearance of the plug does not impress one but actually in practice we have found no faults. Mr. Olley in his Oy6/G23.8.20, asks that they might have permission to use these plugs for repair work and for R.R. cars produced in America. The Champion plugs have been used successfully at the new York Service Station for several years. We recommend that the Champion plugs are used in America and we should like to hear from them how they consider the pres- ent Lodge plug compares with the Champion plug under their conditions. Hs.{Lord Ernest Hives - Chair} | ||