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 Ferodo Ltd. requesting tests on the bursting speed and fade characteristics of 'No.6' clutch facing material.
| Identifier | ExFiles\Box 141\1\ scan0140 | |
| Date | 14th May 1936 | |
| X1180 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Smth.3/KW. 14th May, 1936. Messrs. Ferodo Ltd., Chapel-en-le-Frith. For the attention of Mr. Longley. Dear Sirs, We very much want to find the actual bursting speed of one of our 13 1/2" clutch facings in "No.6" material. Our tackle for doing this is being used for another job, and will be for a week or two, and we are wondering if you have the means of spinning a driven plate at various speeds between, say, 4,000 and 7,000 r.p.m. We of course could supply a splined driving shaft to carry the disc. We should also like to know the /u for No.6 material and its fade characteristics. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||