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1 Stringfellow, John
SUBJECT AREA: Aerospace[br]b. 6 December 1799 Sheffield, Englandd. 13 December 1883 Chard, England[br]English inventor and builder of a series of experimental model aeroplanes.[br]After serving an apprenticeship in the lace industry, Stringfellow left Nottingham in about 1820 and moved to Chard in Somerset, where he set up his own business. He had wide interests such as photography, politics, and the use of electricity for medical treatment. Stringfellow met William Samuel Henson, who also lived in Chard and was involved in lacemaking, and became interested in his "aerial steam carriage" of 1842–3. When support for this project foundered, Henson and Stringfellow drew up an agreement "Whereas it is intended to construct a model of an Aerial Machine". They built a large model with a wing span of 20 ft (6 m) and powered by a steam engine, which was probably the work of Stringfellow. The model was tested on a hillside near Chard, often at night to avoid publicity, but despite many attempts it never made a successful flight. At this point Henson emigrated to the United States. From 1848 Stringfellow continued to experiment with models of his own design, starting with one with a wing span of 10 ft (3m). He decided to test it in a disused lace factory, rather than in the open air. Stringfellow fitted a horizontal wire which supported the model as it gained speed prior to free flight. Unfortunately, neither this nor later models made a sustained flight, despite Stringfellow's efficient lightweight steam engine. For many years Stringfellow abandoned his aeronautical experiments, then in 1866 when the (Royal) Aeronautical Society was founded, his interest was revived. He built a steam-powered triplane, which was demonstrated "flying" along a wire at the world's first Aeronautical Exhibition, held at Crystal Palace, London, in 1868. Stringfellow also received a cash prize for one of his engines, which was the lightest practical power unit at the Exhibition. Although Stringfellow's models never achieved a really successful flight, his designs showed the way for others to follow. Several of his models are preserved in the Science Museum in London.[br]Principal Honours and DistinctionsMember of the (Royal) Aeronautical Society 1868.BibliographyMany of Stringfellow's letters and papers are held by the Royal Aeronautical Society, London.Further ReadingHarald Penrose, 1988, An Ancient Air: A Biography of John Stringfellow, Shrewsbury. A.M.Balantyne and J.Laurence Pritchard, 1956, "The lives and work of William Samuel Henson and John Stringfellow", Journal of the Royal Aeronautical Society (June) (an attempt to analyse conflicting evidence).M.J.B.Davy, 1931, Henson and Stringfellow, London (an earlier work with excellent drawings from Henson's patent)."The aeronautical work of John Stringfellow, with some account of W.S.Henson", Aeronau-tical Classics No. 5 (written by John Stringfellow's son and held by the Royal Aeronautical Society in London).JDS -
2 Aerospace
See also: INDEX BY SUBJECT AREA[br]Caproni, Giovanni BattistaDassault, MarcelGiffard, Baptiste Henry JacquesJohnson, Clarence LeonardKorolov, Sergei PavlovichSopwith, Sir Thomas Octave MurdochTsiolkovsky, Konstantin Eduardovich -
3 Henson, William Samuel
SUBJECT AREA: Aerospace[br]b. 3 May 1812 Nottingham, Englandd. 22 March 1888 New Jersey, USA[br]English (naturalized American) inventor who patented a design for an "aerial steam carriage" and combined with John Stringfellow to build model aeroplanes.[br]William Henson worked in the lacemaking industry and in his spare time invented many mechanical devices, from a breech-loading cannon to an ice-machine. It could be claimed that he invented the airliner, for in 1842 he prepared a patent (granted in 1843) for an "aerial steam carriage". The patent application was not just a vague outline, but contained detailed drawings of a large monoplane with an enclosed fuselage to accommodate the passengers and crew. It was to be powered by a steam engine driving two pusher propellers aft of the wing. Henson had followed the lead give by Sir George Cayley in his basic layout, but produced a very much more advanced structural design with cambered wings strengthened by streamlined bracing wires: the intended wing-span was 150 ft (46 m). Henson probably discussed the design of the steam engine and boiler with his friend John Stringfellow (who was also in the lacemaking industry). Stringfellow joined Henson and others to found the Aerial Transit Company, which was set up to raise the finance needed to build Henson's machine. A great publicity campaign was mounted with artists' impressions of the "aerial steam carriage" flying over London, India and even the pyramids. Passenger-carrying services to India and China were proposed, but the whole project was far too optimistic to attract support from financiers and the scheme foundered. Henson and Stringfellow drew up an agreement in December 1843 to construct models which would prove the feasibility of an "aerial machine". For the next five years they pursued this aim, with no real success. In 1848 Henson and his wife emigrated to the United States to further his career in textiles. He became an American citizen and died there at the age of 75.[br]BibliographyHenson's diary is preserved by the Institute of Aeronautical Sciences in the USA. Henson's patent of 1842–3 is reproduced in Balantyne and Pritchard (1956) and Davy (1931) (see below).Further ReadingH.Penrose, 1988, An Ancient Air: A Biography of John Stringfellow, Shrewsbury.A.M.Balantyne and J.L.Pritchard, 1956, "The lives and work of William Samuel Henson and John Stringfellow", Journal of the Royal Aeronautical Society (June) (an attempt to analyse conflicting evidence; includes a reproduction of Henson's patent).M.J.B.Davy, 1931, Henson and Stringfellow, London (an earlier work with excellent drawings from Henson's patent).JDS
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