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 requesting a figure for a C.F.R. unit to relate knock rating and compression ratio for testing.
| Identifier | ExFiles\Box 150\1\ scan0067 | |
| Date | 8th November 1935 | |
| X1282 Exptl: Dept. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}19/KW. 8th November, 1935. H.{Arthur M. Hanbury - Head Complaints} Fossett, Esq., The Ethyl Export Corporation, Thames House, Millbank, LONDON, S.W.1. Dear Mr. Fossett, Thank you for your letter of the 7th November. I agree that it is almost impossible to give the relation between knock rating and compression ratio in general terms. Could you, however, give me a figure for the C.F.R. unit, which would be a nice one to use ? We should like to do some tests ourselves, but our facilities for varying the compression ratio are very limited. The curves will be very useful, for which many thanks. Yours sincerely, FOR ROLLS-ROYCE LIMITED. | ||