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 the Ethyl Export Corporation regarding the variation of compression ratio with different octane numbered fuels.
| Identifier | ExFiles\Box 150\1\ scan0076 | |
| Date | 13th November 1935 | |
| X1282 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}5/KW. 13th November, 1935. H.{Arthur M. Hanbury - Head Complaints} Fossett Esq., The Ethyl Export Corporation, Thames House, Millbank, London, S.W.1. Dear Fossett, Many thanks for your letter of the 11th November and the curve showing the variation of the compression ratio with different octane numbered fuels. It does not exactly bear out our own findings, but we have not done the test scientifically. When we are a little less rushed on "bread-and-butter" jobs, we may have time to check up on the Bentley with various compression ratios. Yours sincerely, | ||