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).
Letter to Imperial Airways requesting feedback on the 'Wizard' type sparking plug.
| Identifier | ExFiles\Box 58\2\ Scan265 | |
| Date | 7th December 1935 | |
| Hs{Lord Ernest Hives - Chair}/Wst.5/MA. x6000. 7th December, 1935. J.W.Stirling, Esq., Engineer Superintendent, Imperial Airways,ltd., Air Port of London, Croydon. SURREY. Dear Mr.Stirling, I know you have been using for some time now the "Wizard" type sparking plug. Apart from less maintenance in respect to electrode wear, how does the plug function where a lot of oil is present and are they less liable to electrical failure then the conventional type? I should be much obliged if you could give me some information re the above. Yours sincerely, FOR ROLLS-ROYCE LIMITED. | ||