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Aviation History
1919
1919 - 0100.PDF
JANUARY 23, 1919 <3<3 ILESTONES" THE «« BRISTOL " MACHINES As one of the pioneer firms in the aircraft industry particular deeper in front, and the cowling is slightly different, but interest attaches to the products of the British and Colonial otherwise the machine remains true to its prototype. Unlike Aeroplane Co., Ltd., of Filton, Bristol, who commenced their several other makes of single-seater tractors, the Bristol has career quite in the earliest days with " box kites " of the its wing bracing wires arranged in the plane of the staggered Farman type, later followed by more original designs by, struts, a feature that has been considered undesirable on The Bristol Scout, Type D. in • succession, Prier, GordonT England, and Coanda. It was, however, to neither of these designers that the honour of designing the " Bristol " War machines fell. This re sponsibility rested upon Capt. F. S. Barnwell, R.A.F., who joined the firm as designer before the War, and produced, in collaboration, we believe, with Mr. Busteed, the little Bristol scout of pre-War days. The first of these machines was exhibited at the Olympia Aero Show of 1914, scale drawings of which were published in " FLIGHT " of April 25, 1914. Later in the year a similar machine was flown by Lord Carberry in the London-Paris-London race. The first Bristol scout was not greatly different from the type D scout illustrated herewith, although there are certain varia tions as regards dimensions, etc. The Bristol Scout, Type D. The original Bristol scout had an area of only 156 sq. ft., whereas the type D shown in the accompanying illustrations has a total wing area of 200 sq. ft. In general outline the type D is very similar to the original Bristol scout, the rudder, tail plane and fins, as well as the body and main planes, being of almost identical shape. The body is somewhat account of the extra drag stress it may impose on the internal bracing of the top plane, but in the case of the Bristol any such tendency is countered by fitting external drag wires running from the upper and lower ends of the rear inter-plane struts to the front of the fuselage. That this form of bracing is adequate would appear to be proved by the fact that to the best of our knowledge no Bristol scout has ever shed its wings in the air. Several variations of the Bristol type D have been built. With the exception of the fitting of different engines and minor alterations, they have not, however, been greatly different from the machine illustrated. To mention only one. there was the no h,p. Clerg< t-engined machine, which had a slightly different cowl, and had a rotating " spinner" fitted over the propeller boss. Un fortunately we have not received any particulars of the performance, etc., of this machine, and so are unable to include it in the accompanying tables. The Bristol Scout, Type F The development of the type D scout takes the form of a single-seater tractor, designed for a much more powerful engine than was the type D. In connection with the type F The Bristol Scout, Type F.—The engine is a radial, air-cooled, " Mercury." IOO
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