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 from Vauxhall Motors discussing a friction damper, or 'slug', used on a propeller shaft and its potential application.
| Identifier | ExFiles\Box 127\4\ scan0024 | |
| Date | 4th November 1936 | |
| Mr. Appel Vauxhall Motors Ltd CONTRACTORS TO THE ADMIRALTY, WAR OFFICE & AIR MINISTRY. TELEPHONE NUMBER 2600 LUTON. LUTON. BEDS. TELEGRAMS CARVAUX, TELEX, LUTON WHEN REPLYING PLEASE QUOTE -> OUR REF: Rin/Gry{Shadwell Grylls}/10/MJ. YOUR REF: 4th November 1936. Messrs. Rolls Royce Ltd., DERBY. Dear Sirs, Thank you very much for your letter of October 26th and the enclosure showing the friction damper used on the front of your propellor shaft. The unit called a "slug" is unknown to me but I appreciate that the necessity for this device was created by lower flywheel mass and a perhaps higher b.m.e.p. of the engine, the same as in our case. Vauxhall seem to find a decidedly beneficial effect in adding a few pounds of weight to the flywheel without suffering unduly from loss of acceleration. They expect to make their final decision on the course they will follow in a day or two. Very truly yours, W.D.Appel W.D.APPEL. ABERMILL S BOND MADE IN GT BRITAIN | ||