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Heinkel HD 17
The Heinkel HD 17 was a military reconnaissance aircraft produced in Germany in the late 1920s. Design The Heinkel HD 17 was a conventional single-bay biplane with strongly staggered wings of unequal span braced with N-type interplane struts. The pilot and observer sat in tandem, open cockpits, and the main units of the fixed, tailskid undercarriage were linked by a cross-axle. Operational history The Heinkel HD 17 first flew in 1924. In 1926, it was evaluated by the ''Reichswehr'' to equip the secret aviation training school at Lipetsk, and was selected in favour of the competing Albatros L 65. Seven aircraft were purchased and used briefly for training until replaced by more modern designs. Two Heinkel HD 17s were evaluated in 1924 by the US Army Air Service, being modified by Cox-Klemin to use a Napier Lion The Napier Lion is a 12-cylinder, petrol-fueled 'broad arrow' W12 configuration aircraft engine built by D. Napier & Son from 1917 until the 1930s. A number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lipetsk Fighter-pilot School
The Lipetsk fighter-pilot school (german: Kampffliegerschule Lipezk), also known as WIWUPAL from its German codename ''Wissenschaftliche Versuchs- und Personalausbildungsstation'' "Scientific Experimental and Personnel Training Station", was a secret training school for fighter pilots operated by the German ''Reichswehr'' at Lipetsk, Soviet Union, because Germany was prohibited by the Treaty of Versailles from operating an air force and sought alternative means to continue training and development for the future ''Luftwaffe''. It is now the site of Lipetsk Air Base. Background The Treaty of Versailles, signed on 28 June 1919, prohibited Germany from operating any form of air force after the country had lost the First World War. Initially, it also prohibited the production and import of any form of aircraft to the country. In 1922, the clause on civilian aircraft was dropped and Germany was able to produce planes again, followed in 1923 with the country regaining control of its air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinkel Aircraft
Heinkel Flugzeugwerke () was a German aircraft manufacturing company founded by and named after Ernst Heinkel. It is noted for producing bomber aircraft for the Luftwaffe in World War II and for important contributions to high-speed flight, with the pioneering examples of a successful liquid-fueled rocket and a turbojet-powered aircraft in aviation history, with both Heinkel designs' first flights occurring shortly before the outbreak of World War II in Europe. History Following the successful career of Ernst Heinkel as the chief designer for the Hansa-Brandenburg aviation firm in World War I, Heinkel's own firm was established at Warnemünde in 1922, after the restrictions on German aviation imposed by the Treaty of Versailles were relaxed. By 1929, the firm's compressed air-powered catapults were in use on the German Norddeutscher Lloyd ocean-liners and to launch short-range mail planes from the liners' decks. The company's first post-World War I aircraft design success was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1920s German Military Reconnaissance Aircraft
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W-12 Engine
A W12 engine is a twelve-cylinder piston engine where three banks of four cylinders are arranged in a W configuration around a common crankshaft. W12 engines with three banks of four cylinders were used by several aircraft engines from 1917 until the 1930s. A three-bank design was also used for an unsuccessful W12 engine which was intended to compete in Formula One in 1990. W12 engines are less common than V12 engines as only a handful of automobile manufacturers use them. The W12 engine has been produced by the Volkswagen Group since 2001. This four-bank engine – based on two VR6 engines with a common crankshaft – has only been used in flagship high performance car models produced under the Volkswagen Group. Aircraft engines The Napier Lion was a three-bank design (also called "broad arrow" design) W12 engine produced in the United Kingdom from 1917 to the late 1930s. It had a capacity of and produced . As well as use in various military and racing airplanes, the Lion w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinkel HD 17 3-view Les Ailes January 7, 1926
Heinkel Flugzeugwerke () was a German aircraft manufacturing company founded by and named after Ernst Heinkel. It is noted for producing bomber aircraft for the Luftwaffe in World War II and for important contributions to high-speed flight, with the pioneering examples of a successful liquid-fueled rocket and a turbojet-powered aircraft in aviation history, with both Heinkel designs' first flights occurring shortly before the outbreak of World War II in Europe. History Following the successful career of Ernst Heinkel as the chief designer for the Hansa-Brandenburg aviation firm in World War I, Heinkel's own firm was established at Warnemünde in 1922, after the restrictions on German aviation imposed by the Treaty of Versailles were relaxed. By 1929, the firm's compressed air-powered catapults were in use on the German Norddeutscher Lloyd ocean-liners and to launch short-range mail planes from the liners' decks. The company's first post-World War I aircraft design s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberty 12
The Liberty L-12 is an American water-cooled 45° V-12 aircraft engine displacing and making designed for a high power-to-weight ratio and ease of mass production. It saw wide use in aero applications, and, once marinized, in marine use both in racing and runabout boats. A single bank 6-cylinder version, the Liberty L-6, and V-8, the Liberty L-8, were derived from the Liberty L-12. It was succeeded by the Packard 1A-2500. Development In May 1917, a month after the United States had declared war on Germany, a federal task force known as the Aircraft Production Board summoned two top engine designers, Jesse G. Vincent (of the Packard Motor Car Company of Detroit) and Elbert J. Hall (of the Hall-Scott Motor Co. in Berkeley, California), to Washington, D.C. They were given the task of designing as rapidly as possible an aircraft engine that would rival if not surpass those of Great Britain, France, and Germany. The Board specified that the engine would have a high power-to-wei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Napier Lion
The Napier Lion is a 12-cylinder, petrol-fueled 'broad arrow' W12 configuration aircraft engine built by D. Napier & Son from 1917 until the 1930s. A number of advanced features made it the most powerful engine of its day and kept it in production long after other contemporary designs had been superseded. It is particularly well known for its use in a number of racing designs, for aircraft, boats and cars. Design and development Early in the First World War, Napier were contracted to build aero engines to designs from other companies, initially a Royal Aircraft Factory model and then Sunbeams. Both engines proved to be unreliable and in 1916 Napier decided to design an engine with high power, light weight and low frontal area. Napier's engineers laid out the engine with its 12 cylinders in what they called a "broad arrow"—three banks of four cylinders sharing a common crankcase. This suggested the design's first name, the Triple-Four. The configuration is also known as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cox-Klemin
The Cox-Klemin Aircraft Corporation was an American aircraft manufacturer based in Long Island, New York in the 1920s. History It was founded by Charles Cox and Alexander Klemin (a professor at New York University) in College Point, New York. The company took over an ordnance plant in Baldwin, New York in 1924. Later that year, it partnered with Ernst Heinkel to design and build a mailplane. In defiance of prohibition, the company christened its new Nighthawk airplane using champagne in 1925. The company filed for bankruptcy in 1925. However, bankruptcy proceedings continued into 1926. The case was further delayed after the court could not locate company management. Grumman The Grumman Aircraft Engineering Corporation, later Grumman Aerospace Corporation, was a 20th century American producer of military and civilian aircraft. Founded on December 6, 1929, by Leroy Grumman and his business partners, it merged in 1994 ... would later open its first plant in the shuttered Cox- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Army Air Service
The United States Army Air Service (USAAS)Craven and Cate Vol. 1, p. 9 (also known as the ''"Air Service"'', ''"U.S. Air Service"'' and before its legislative establishment in 1920, the ''"Air Service, United States Army"'') was the aerial warfare service component of the United States Army between 1918 and 1926 and a forerunner of the United States Air Force. It was established as an independent but temporary branch of the U.S. War Department during World War I by two executive orders of President Woodrow Wilson: on May 24, 1918, replacing the Aviation Section, Signal Corps as the nation's air force; and March 19, 1919, establishing a military Director of Air Service to control all aviation activities., p. 149, Appendix 2 Redesignations of the Army Air Arm, 1907–1942. Its life was extended for another year in July 1919, during which time Congress passed the legislation necessary to make it a permanent establishment. The National Defense Act of 1920 assigned the Air Service th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albatros L 65
__NOTOC__ The Albatros L 65 was a German two-seat reconnaissance fighter biplane first flown in 1925. Design and development Under the Treaty of Versailles, military aircraft production was restricted in Germany, so Albatros Flugzeugwerke established a subsidiary to build the L 65 in Lithuania. This company was named Allgemeine Flug-Gesellschaft (A.F.G.) Memel, hence the L 65 was also known as the Memel A.F.G.1 (''Memel'' being the German name for the city of Klaipeda). The L 65 had a single-bay, staggered biplane configuration and was constructed of wood with a plywood skin. The wings were braced by interplane I-struts of broad aerofoil cross-section. Two prototypes were built, the first powered by a 340 kW (450 hp) water-cooled 12-cylinder "broad-arrow" Napier Lion engine; the second had its first flight in 1926 and had a 421 kW (565 hp) version of the Lion. The second prototype underwent evaluation by the '' Reichswehr'' to equip the clandestine tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
