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 Champion Sparking Plug Co. Ltd. regarding the return and testing of various spark plugs.
| Identifier | ExFiles\Box 58\2\ Scan002 | |
| Date | 13th April 1928 | |
| C O P Y. ROY{Sir Henry Royce}/GEA14/EB13428. 13th April 1928. Messrs.The Champion Sparking Plug Co.Ltd., 83, Pall Mall, LONDON. S.W.1. Dear Sirs, We thank you for your letter of the 11th instant, referring to the A.E type Sparking Plugs recently returned to you. We find that some A.E.F plugs were returned by mistake, and we are now returning the remaining ten A.E.9's which should have been despatched at that time. Since our last report, we have had ten A.E.F type Plugs on test in a 7/1 compression engine. We find that these A.E.1 Plugs oil up more readily than the Plugs we are using as standard at present. This was demonstrated to Mr.Marochhi when on a visit to Derby. The ten A.E.F Plugs we have, will be sufficient for any further tests we wish to carry out and we shall be glad if you will credit us with the ten A.E.9 Plugs now being returned to you. Yours faithfully, FOR ROLLS-ROYCE LIMITED., Buyer. | ||