12 misfiring sparking plugs from a Phantom III, car 34-EX, after running on 'Ethyl' fuel.
| Identifier | ExFiles\Box 150\1\ scan0203 | |
| Date | 25th September 1936 | |
| Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} from Mx. {John H Maddocks - Chief Proving Officer} Mx {John H Maddocks - Chief Proving Officer} 20/T25.9.36 RE. PHANTOM III SPARKING PLUGS I am sending you herewith 12 Sparking Plugs which were removed from 34-EX which misfired badly after running on "Ethyl" | ||
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).