Letter from Dunlop Rubber Co. Ltd. providing tyre specification and contact data.
| Identifier | ExFiles\Box 157\1\ scan0287 | |
| Date | 31th March 1936 | |
| X1332 DUNLOP RUBBER CO.,LTD. TELEGRAPHIC ADDRESS: "DUNLOPS.PHONE,BIRMINGHAM". TELEPHONE: Erd. 2121. EXTENSION No. 237. YOUR REF: TMB-Office. OUR REF: P/W.157 FORT DUNLOP ERDINGTON BIRMINGHAM 31st March 1936. Messrs. Rolls-Royce Ltd. DERBY. For attention of Mr. Grylls, Experimental Dept. Dear Sirs, We are sorry that the information referred to in your letter of March 30th (ref: Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 9/JH.) has not been transmitted to you. It was compiled but there was apparently a misunderstanding as to whether it should be forwarded by Mr. Price or this Department. We are sorry for the delay. The information is given hereunder : Rim Diameter - 32.50". Width - 7.3" Effective Radius. Load. Inflation Pressure. 15.1" 17 cwts. 40 lbs/sq.inch. 15.05" 2000 lbs. 40 " 15.4" 700 " 15 " Contact Data. 2000 lbs. 700 lbs. Load - 2000 lbs. 700 lbs. Pressure - 40 lbs/sq.in. 15 lbs/sq.in. Land Area - 30.8 sq.inches. 21.7 sq.inches. Ellipse Area - 43.6 " 30.4 " Ellipse Width - 5.25" 4.7" Ellipse Length - 9.3" 7.6" Contact Pressure - 65 lbs/sq.inch. 32.3 lbs/sq.inch. Yours faithfully, for DUNLOP RUBBER COMPANY LTD. A.S. Perret. Technical Manager's Office. | ||
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).