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 Capt. Cyril Turner regarding tests on Hurley-Townsend Spark Plugs and the service life of existing plugs.
| Identifier | ExFiles\Box 58\2\ Scan031 | |
| Date | 13th April 1932 | |
| 818/1a Expl. Dept. Hs{Lord Ernest Hives - Chair}/Yng.6/MJ. April 13th.1932. Capt. Cyril Turner A.F.C., 24, Rue de Belvedere, Parc des Princes, Boulogne-sur-Seine. Re. Hurley-Townsend Spark Plugs. Dear Sir, We have carried out certain tests on sample plugs of the above type. A report of these tests is attached herewith, together with certain engine particulars which you requested. With regard to particulars as to average length of service which we are getting from our existing plugs. We have no figures available on this, as all our engines at present are installed in Service aircraft and routine adjustments are carried out every 10 to 20 hrs. flying. Yours faithfully, For Rolls-Royce Ltd. Attachments. | ||