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Kurt Hohenemser
Kurt Heinrich Hohenemser (January 3, 1906 – April 7, 2001) was a German-born American aerospace engineer and pioneer in the field of helicopter design. Life in Germany Kurt Hohenemser was born on January 3, 1906, in Berlin, Germany, to the German Jewish musicologist Richard Hohenemser and his English wife Alice Salt.Szabó, Anikó. ''Vertreibung, Rückkehr, Wiedergutmachung: Göttinger Hochschullehrer im Schatten des Nationalsozialismus.'' Göttingen, Germany: Wallstein, 2000. He received his secondary education from the Goethe-Schule in Berlin-Wilmersdorf, Hermann-Lietz-Schule Haubinda, and Ziehenschule in Eschersheim. In 1924, Hohenemser received his Abitur. Hohenemser attended university at the Technische Hochschule Darmstadt from 1924 to 1929, receiving his Diplom-Ingenieur in 1927 and his Doktoringenieur in 1929. From 1930 until 1933, Hohenemser taught and conducted research at the University of Göttingen under Ludwig Prandtl, one of the most famous aerodynamics physicis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Göttingen
The University of Göttingen, officially the Georg August University of Göttingen, (german: Georg-August-Universität Göttingen, known informally as Georgia Augusta) is a public research university in the city of Göttingen, Germany. Founded in 1734 by George II, King of Great Britain and Elector of Hanover, and starting classes in 1737, the Georgia Augusta was conceived to promote the ideals of the Enlightenment. It is the oldest university in the state of Lower Saxony and the largest in student enrollment, which stands at around 31,600. Home to many noted figures, it represents one of Germany's historic and traditional institutions. According to an official exhibition held by the University of Göttingen in 2002, 44 Nobel Prize winners had been affiliated with the University of Göttingen as alumni, faculty members or researchers by that year alone. The University of Göttingen was previously supported by the German Universities Excellence Initiative, holds memberships ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington University In St
Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on Washington, D.C. * George Washington George Washington (February 22, 1732, 1799) was an American military officer, statesman, and Founding Father who served as the first president of the United States from 1789 to 1797. Appointed by the Continental Congress as commander of th ... (1732–1799), the first president of the United States Washington may also refer to: Places England * Washington, Tyne and Wear, a town in the City of Sunderland metropolitan borough ** Washington Old Hall, ancestral home of the family of George Washington * Washington, West Sussex, a village and civil parish Greenland * Cape Washington, Greenland * Washington Land Philippines *New Washington, Aklan, a municipality *Washington, a barangay in Catar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell Boeing V-22 Osprey
The Bell Boeing V-22 Osprey is an American multi-mission, tiltrotor military aircraft with both vertical takeoff and landing (VTOL) and short takeoff and landing (STOL) capabilities. It is designed to combine the functionality of a conventional helicopter with the long-range, high-speed cruise performance of a turboprop aircraft. In 1980, the failure of Operation Eagle Claw (during the Iran hostage crisis) underscored that there were military roles for which neither conventional helicopters nor fixed-wing transport aircraft were well-suited. The United States Department of Defense (DoD) initiated a program to develop an innovative transport aircraft with long-range, high-speed, and vertical-takeoff capabilities, and the Joint-service Vertical take-off/landing Experimental (JVX) program officially commenced in 1981. A partnership between Bell Helicopter and Boeing Helicopters was awarded a development contract in 1983 for the V-22 tiltrotor aircraft. The Bell Boeing team joint ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McDonnell XV-1
The McDonnell XV-1 is an experimental Convertiplane developed by McDonnell Aircraft for a joint research program between the United States Air Force and the United States Army to explore technologies to develop an aircraft that could take off and land like a helicopter but fly at faster airspeeds, similar to a conventional airplane. The XV-1 would reach a speed of , faster than any previous rotorcraft, but the program was terminated due to the tip-jet noise and complexity of the technology which gave only a modest gain in performance. Development In 1951, the Air Force announced a competition to develop a compound helicopter, an aircraft that could take off and land vertically, like a helicopter, but could cruise at higher airspeeds than conventional helicopters.(Connor & Lee, 2001) The joint research program was being conducted by the Air Force's Research and Development Command and the Army's Transportation Corps.(Harding, 1997) Bell Aircraft submitted the design for the XV ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McDonnell XH-20 Little Henry
The McDonnell XH-20 Little Henry was a 1940s American experimental lightweight helicopter designed and built by McDonnell Aircraft. Development The McDonnell Model 38 was a lightweight experimental helicopter sponsored by the United States Army Air Force to test the concept of using small ramjets at the tips of the rotor blades. As a functional helicopter it was a simple open-frame steel-tube construction. Allotted the military designation XH-20 the first of two first flew on the 29 August 1947. Although the XH-20 flew successfully the ramjets were noisy and burnt a large amount of fuel and plans to build a larger two-seat XH-29 were abandoned. Variants ''Data from:'' U.S.Military Aircraft Designations and Serials since 1909 ;XH-29 ;XH-20 ;McDonnell Model 38:experimental lightweight helicopter, two built. ;McDonnell Model 79:a proposed two-seat development, cancelled. Operator ; *United States Air Force Aircraft on display *''46-689'' the first XH-20 is on display at the Nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McDonnell Aircraft
The McDonnell Aircraft Corporation was an American aerospace manufacturer based in St. Louis, Missouri. The company was founded on July 6, 1939, by James Smith McDonnell, and was best known for its military fighters, including the F-4 Phantom II, and crewed spacecraft including the Mercury capsule and Gemini capsule. McDonnell Aircraft later merged with the Douglas Aircraft Company to form McDonnell Douglas in 1967. History James McDonnell founded J.S. McDonnell & Associates in Milwaukee, Wisconsin, in 1928 to produce a small aircraft for family use.J.S. McDonnell & Associates, Early years: 1927-1938 (part 1) , Boeing.com. The economic depression from 1929 ruined his plans and the company collapsed. He went to work for [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flettner 282 Modell 02
Anton Flettner, Flugzeugbau GmbH was a German helicopter and autogyro manufacturer during World War II, founded by Anton Flettner. Flettner aircraft included: *Flettner Fl 184 - Reconnaissance autogyro, prototype *Flettner Fl 185 - Reconnaissance helicopter, prototype *Flettner Fl 265 - Reconnaissance helicopter, prototype *Flettner Fl 282 ''Kolibri'' (Hummingbird) - Reconnaissance helicopter *Flettner Fl 339 - Reconnaissance helicopter, project *Flettner Gigant - Experimental helicopter Anton Flettner's interest in aerodynamics (specifically the Magnus effect, which produces a force from a cylinder rotating in a fluid flow) also led him to invent the Flettner rotor which he used to power a Flettner ship which crossed the Atlantic, and the Flettner ventilator which is still widely used as a cooling device for buses, vans and other commercial vehicles and which is based upon the Savonius principle. See also * Gyrodyne * List of RLM aircraft designations This is a list of aircraf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flettner Fl 282
The Flettner Fl 282 ''Kolibri'' ("Hummingbird") is a single-seat intermeshing rotor helicopter, or ''synchropter'', produced by Anton Flettner of Germany. According to Yves Le Bec, the Flettner Fl 282 was the world's first series production helicopter. Design and development The Fl 282 ''Kolibri'' was an improved version of the Flettner Fl 265 announced in July 1940, which pioneered the same intermeshing rotor configuration that the ''Kolibri'' used. It had a 7.7 litre displacement, seven-cylinder Siemens-Halske Sh 14 radial engine of mounted in the center of the fuselage, with a transmission mounted on the front of the engine from which a drive shaft ran to an upper gearbox, which then split the power to a pair of opposite-rotation drive shafts to turn the rotors. The Sh 14 engine was a venerable, tried-and-true design with low specific power output and low power/weight ratio (20.28 hp/L, 0.54 hp/lb) which could (anecdotally) run for up to 400 hours without major ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anton Flettner
Anton Flettner (November 1, 1885 – December 29, 1961) was a German aviation engineer and inventor. Born in Eddersheim (today a district of Hattersheim am Main), Flettner made important contributions to airplane, helicopter, vessel, and automobile designs. After serving Germany in both World Wars, Anton Flettner emigrated to the United States post World War II as a consultant to the office of Naval Research at the United States Navy. Anton Flettner attended the Fulda State Teachers College in Fulda, Germany. He was the village teacher in Pfaffenwiesbach from 1906 to 1909. Flettner subsequently taught high school mathematics and physics in Frankurt, where he developed ideas that would assist Germany in World War I. Flettner revolutionized the art of harnessing the wind, used essentially in an unaltered form for thousands of years—the canvas sail—by a modern machine—the Flettner Rotor ship—that could permit ocean liners to reduce their crews by two-thirds and save 90 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerhard Fieseler
Gerhard Fieseler (15 April 1896 – 1 September 1987) was a German World War I flying ace, aerobatics champion, and aircraft designer and manufacturer. From birth to the 1918 armistice Born in Glesch (near Cologne), Fieseler joined the Air Service of the Imperial German Army in 1915. A crash during training hospitalized him until February 1916, but he had become an observation pilot by October 1916, flying first with ''Feldflieger Abteilung'' 243, then with ''Feldflieger Abteilung'' 41. In 1917 he qualified as a fighter pilot and was posted on 12 July to the Macedonian front, initially flying a Roland D.II with '' Jagdstaffel 25''. Fieseler scored his first aerial victory on 20 August 1917. A serious illness removed him from active duty from 21 September until 5 November 1917.Franks ''et al.'' 1993, pp. 106-107. Fieseler would not score his second success until 30 January 1918. He was eventually credited with nineteen confirmed aerial victories, with three others unconfirmed. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
