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 Dunlop Rubber Co. Ltd. providing feedback on the noise levels of a new set of test tyres.
| Identifier | ExFiles\Box 45\1\ Scan178 | |
| Date | 10th February 1921 | |
| X.4080 Hsl/LG. [STAMP: RECEIVED EFC FEB 10] [HANDWRITTEN: EFC] 10th. Feb. 1921. Messrs. The Dunlop Rubber Co.Ltd., Aston Cross, Birmingham. Dear Sirs, For the attention Mr. W.Bond. With reference to the latest set of tyres we have received from you for test. We find that these are a considerable improvement over the previous tyres as regards silence. We can pick out a noise from them between 25 and 40 M.P.H. but we do not consider it objectionable. It remains to be proved whether these tyres will remain silent after the tread has worn down. We will let you know if we notice any difference in the noise as the tyres wear. Attached herewith is the usual report on the tyre mileage. Yours faithfully, | ||