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 unsuitability of a sample Champion spark plug and specifying desired features for plugs to be used in car work.
| Identifier | WestWitteringFiles\D\March1920\ Scan58 | |
| Date | 7th March 1920 | |
| Hs{Lord Ernest Hives - Chair}4/LG17.3.20. ----------------- We do not consider these plugs satisfactory for our use. CHAMPION PLUGS. We have so far only received one sample of these plugs. From examination, the complaint we have of the sample is the fact that it is only a single point plug. We have always obtained the best running on our engines with the multi-point plugs. We should like to have samples of plugs which have been proved successful on R-R Cars in America by our Service Station there. For car work we prefer a plug which has - 1. Pot insulation. 2. Nickel sparking points. 3. Multi sparking points. Hs.{Lord Ernest Hives - Chair} | ||