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1 Flettner, Anton
SUBJECT AREA: Aerospace[br]b. 1 November 1885 Eddersheim-am-Main, Germanyd. 29 December 1961 New York, USA[br]German engineer and inventor who produced a practical helicopter for the German navy in 1940.[br]Anton Flettner was an engineer with a great interest in hydraulics and aerodynamics. At the beginning of the First World War Flettner was recruited by Zeppelin to investigate the possibility of radio-controlled airships as guided missiles. In 1915 he constructed a small radio-controlled tank equipped to cut barbed-wire defences; the military experts rejected it, but he was engaged to investigate radio-controlled pilotless aircraft and he invented a servo-control device to assist their control systems. These servo-controls, or trim tabs, were used on large German bombers towards the end of the war. In 1924 he invented a sailing ship powered by rotating cylinders, but although one of these crossed the Atlantic they were never a commercial success. He also invented a windmill and a marine rudder. In the late 1920s Flettner turned his attention to rotating-wing aircraft, and in 1931 he built a helicopter with small engines mounted on the rotor blades. Progress was slow and it was abandoned after being damaged during testing in 1934. An autogiro followed in 1936, but it caught fire on a test flight and was destroyed. Undeterred, Flettner continued his development work on helicopters and in 1937 produced the Fl 185, which had a single rotor to provide lift and two propellers on outriggers to combat the torque and provide forward thrust. This arrangement was not a great success, so he turned to twin contra-rotating rotors, as used by his rival Focke, but broke new ground by using intermeshing rotors to make a more compact machine. The Fl 265 with its "egg-beater" rotors was ordered by the German navy in 1938 and flew the following year. After exhaustive testing, Flettner improved his design and produced the two-seater Fl 282 Kolibri, which flew in 1940 and became the only helicopter to be used operationally during the Second World War.After the war, Flettner moved to the United States where his intermeshing-rotor idea was developed by the Kaman Aircraft Corporation.[br]Bibliography1926, Mein Weg zum Rotor, Leipzig; also published as The Story of the Rotor, New York (describes his early work with rotors—i.e. cylinders).Further ReadingW.Gunston and J.Batchelor, 1977, Helicopters 1900–1960, London.R.N.Liptrot, 1948, Rotating Wing Activities in Germany during the Period 1939–45, London.K.von Gersdorff and K.Knobling, 1982, Hubschrauber und Tragschrauber, Munich (a more recent publication, in German).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
См. также в других словарях:
Flettner, Anton — ▪ German inventor born Nov. 1, 1885, Eddersheim, Ger. died Dec. 29, 1961, New York City German inventor of the rotor ship, a vessel propelled by revolving cylinders mounted vertically on the deck. He also invented the Flettner trim tab… … Universalium
Flettner — als junger Mann (1. v. rechts) und Flettner Villa Anton Flettner (* 1. November 1885 in Eddersheim bei Frankfurt am Main; † 25. Dezember 1961 in den USA) war ursprünglich Lehrer, dann Ingenieur und Erfinder … Deutsch Wikipedia
Anton Flettner — Anton Flettner, né le 1er novembre 1885 à Eddersheim près de Francfort sur le Main et mort le 25 décembre 1961 aux États Unis, est un ingénieur … Wikipédia en Français
Flettner — Anton Flettner Anton Flettner Anton Flettner, né le 1er novembre 1885 à Eddersheim près de Francfort sur le Main et mort le 25 décembre 1961 aux États Unis, est un … Wikipédia en Français
Flettner-rotor — Magnuseffekt am Flettner Rotor Der Flettner Rotor ist ein alternativer aerodynamischer Antrieb in Form eines der Windströmung ausgesetzten, rotierenden Zylinders, der durch den Magnus Effekt eine Kraft quer zur Anströmung entwickelt. Er ist nach… … Deutsch Wikipedia
FLETTNER — GERMANY (see also List of Individuals) 1.11.1885 Eddersheim/D 29.12.1961 New York/USA Anton Flettner was originally a teacher. In World War I he was recruited by Zeppelin to investigate the possibility of radio controlled airships as guided… … Hydraulicians in Europe 1800-2000
Flettner-Klappe — Ein Flettner Ruder, auch Flettner Klappe, ist bei Flugzeugen eine Hilfsklappe am hinteren Teil eines Ruders, die bei jedem Ausschlag des Ruders automatisch entgegengesetzt mitläuft und durch ihre aerodynamische Wirkung die vom Piloten… … Deutsch Wikipedia
Anton Flettner — Flettner als junger Mann (1. v. rechts) und Flettner Villa Anton Flettner (* 1. November 1885 in Eddersheim bei Frankfurt am Main; † 25. Dezember 1961 in New York City, USA) war ursprünglich Lehrer, dann Ingenieur und Erfinder. Im G … Deutsch Wikipedia
Flettner Fl 282 — Kolibri … Deutsch Wikipedia
Flettner — Anton Flettner, Flugzeugbau GmbH was a German helicopter manufacturer during World War II, founded by Anton Flettner.Flettner aircraft included: *Flettner Fl 184 reconnaissance helicopter, prototype *Flettner Fl 185 reconnaissance helicopter,… … Wikipedia
Flettner Fl 282 — Kolibri Flettner Fl 282 Kolibri … Википедия
