Hargrave, Lawrence

▪ British aeronautical engineer
born Jan. 29, 1850, Greenwich, London, Eng.
died July 6, 1915, Sydney, Australia

      English aviation pioneer and inventor of the box kite (Hargrave box kite).

      Born and educated in England, Hargrave immigrated to Australia, where he began work in 1866 as a draftsman. He participated in expeditions to New Guinea in 1872, 1875, and 1876, and in 1878 he accepted a position as an astronomical assistant at the Sydney Observatory. Hargrave began to research the problems of flight in 1882, making careful studies of the flight of birds and insects. He constructed a number of monoplane models between 1884 and 1892, employing several methods of propulsion, including a crude compressed-air rotary engine developed in 1889. In 1893, after confirming the superior lifting qualities of cambered wings, he began experimenting with kites. Hargrave is best remembered for the introduction of the cellular kite, or box kite, as it is now known.

      At Stamwell Park, New South Wales, on Nov. 12, 1894, he was lifted 4.8 metres (almost 16 feet) off the ground by four box kites of his own construction. He used models to demonstrate that a vertical tailpiece increased stability, and he built and flew a variety of models, some of which were powered by compressed air. Hargrave visited England in 1899, where he read papers describing his work and exhibited his models. The box kite, which was a significant step in the evolution of biplane aircraft structures, represents Hargrave's most important contribution to the invention of the airplane.

Tom D. Crouch
 

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Universalium. 2010.

Look at other dictionaries:

  • HARGRAVE, Lawrence (1850-1915) — pioneer in aviation was born in England on 29 January 1850. He was the second son of John Fletcher Hargrave (1815 1885), an English barrister, who came to Australia in 1857, and his wife Ann Hargrave. The elder Hargrave was appointed a district… …   Dictionary of Australian Biography

  • Lawrence Hargrave — Lawrence Hargraves (29 January 1850 – 14 July 1915 [Some older sources state that he died on 6 July 1915.Fact|date=July 2008] ) was an engineer, explorer, astronomer, inventor and aeronautical pioneer. Early life Hargraves was born in Greenwich,… …   Wikipedia

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  • Lawrence Hargrave — Hargrave (assis) et Swain avec ses cerfs volants à la plage de Stanwell Park, novembre 1894 Lawrence Hargrave (29 janvier 1850 6 juillet 1915), pionnier en aéronautique, a fait le premier vol humain en cerf volant le 12 novembre 1894. Il a vécu à …   Wikipédia en Français

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  • Hargrave —   [ hɑːgreɪv], Lawrence, britisch australischer Flugpionier, * Greenwich (heute zu London) 29. 1. 1850, ✝ Sydney 6. 7. 1915; machte seit 1884 in Sydney Versuche mit Flugmodellen, seit 1893 mit Kastendrachen, an die A. Santos Dumont mit seinem… …   Universal-Lexikon

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