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Braunschweig LF-1 Zaunkönig
The Braunschweig LF-1 Zaunkönig, (LF – ''Langsames Flugzeug'' – literally, slow aircraft), is a STOL single-seat light aircraft. It was designed in 1939 by Prof. Ing. Hermann Winter as a fool-proof trainer for novice student pilots to experience solo flight. Design and development The LF-1 was designed by Prof. Dr.-Ing. Hermann Winter and some of his students from the Technische Universität Braunschweig (English:Technical University of Brunswick), Lower Saxony, Germany. Winter was a former chief engineer at the Bulgarian company, Darzhavna Aeroplanna Rabotilnitsa, DAR (''Drzhavnata Aeroplanna Rabotilnitsa'' in Cyrillic ''ДАР – Държавната аеропланна работилница''), where he created a line of aircraft; DAR-1, DAR-1A, DAR-2, DAR 3, DAR-3 Garvan, tri motor DAR-4, DAR 5 Brambar, DAR-6 and DAR-7 as well as the DAR Zdravka Vekilski and DAR Zdravka Toprakchiev gliders for the Bulgarian Army. The LF-1 is a parasol wing monoplane with a T-tail, hi ... [...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] |
DAR Zdravka Toprakchiev
Dar or DAR may refer to: Settlements * Dar es Salaam, the largest city of Tanzania and East Africa * Dar, Azerbaijan, a village * Dar, Iran, a village People * Dar (tribe), a Kashmiri tribe in India and Pakistan * Aleem Dar, Pakistani cricketer and international umpire * Ami Dar, Israeli-American nonprofit leader * Asif Dar, Pakistani-Canadian boxer * Abdul Majeed Dar, commander of Hizbul Mujahideen * Igal Dar (1936–1977), Israeli basketball player * Mukhtar Dar, Pakistani-born artist and activist * Noam Dar, Israeli-Scottish professional wrestler * William Dar (born 1953), Filipino horticulturist and government administrator * Dar Lyon, an English first-class cricketer * Dar Robinson, American stunt performer and actor * Dar Williams, folk-pop artist Fictional characters * Dar, the main character in the 1982 fantasy film '' The Beastmaster'' and the 1999–2002 Canadian ''Beastmaster '' TV series * Dar Adal, one of the main characters in the TV series ''Homeland'' Acro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Aircraft Establishment
The Royal Aircraft Establishment (RAE) was a British research establishment, known by several different names during its history, that eventually came under the aegis of the Ministry of Defence (United Kingdom), UK Ministry of Defence (MoD), before finally losing its identity in mergers with other institutions. The first site was at Farnborough Airfield ("RAE Farnborough") in Hampshire to which was added a second site RAE Bedford (Bedfordshire) in 1946. In 1988 it was renamed the Royal Aerospace Establishment (RAE) before merging with other research entities to become part of the new Defence Research Agency in 1991. History In 1904–1906 the Army Balloon Factory, which was part of the Army School of Ballooning, under the command of Colonel James Templer (balloon aviator), James Templer, relocated from Aldershot to the edge of Farnborough Common in order to have enough space to inflate the new "dirigible balloon" or airship which was then under construction.Walker, P; Early Avi ... [...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] |
Panzerfaust 100
The ''Panzerfaust'' (, "armour fist" or "tank fist", plural: ''Panzerfäuste'') was a development family of single-shot man-portable anti-tank systems developed by Nazi Germany during World War II. The weapons were the first single-use light anti-tank weapons based on a pre-loaded disposable launch tube, a weapon configuration which is still used today (two modern examples being the AT4 and NLAW). The ''Panzerfaust''-design consisted of a light recoilless launcher tube outfitted with a single pre-loaded high-explosive anti-tank warhead protruding from the muzzle, much like a "fist", hence the name. It was an inexpensive, easy-to-use anti-tank weapon for the common infantry man, being issued as a single unit of ammunition meant to be operated by a single soldier. Firing was done from under the arm at an upward angle as the effective firing range was barely beyond that of hand grenades ( max). After use the launcher was disposed of, much like the safety pin in hand grenades. De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Registration
An aircraft registration is a code unique to a single aircraft, required by Chicago Convention, international convention to be marked on the exterior of every civil aircraft. The registration indicates the aircraft's country of registration, and functions much like an automobile license plate or a ship registration. This code must also appear in its Certificate of Registration, issued by the relevant civil aviation authority (CAA). An aircraft can only have one registration, in one jurisdiction, though it is changeable over the life of the aircraft. Legal provisions In accordance with the Convention on International Civil Aviation (also known as the Chicago Convention), all civil aircraft must be registered with a civil aviation authority (CAA) using procedures set by each country. Every country, even those not party to the Chicago Convention, has an NAA whose functions include the registration of civil aircraft. An aircraft can only be registered once, in one jurisdiction, at a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eric Brown (pilot)
Captain Eric Melrose "Winkle" Brown, CBE, DSC, AFC, Hon FRAeS, RN (21 January 1919 – 21 February 2016) was a British Royal Navy officer and test pilot who flew 487 types of aircraft, more than anyone else in history. Brown holds the world record for the most aircraft carrier deck take-offs and landings performed (2,407 and 2,271 respectively) and achieved several "firsts" in naval aviation, including the first landings on an aircraft carrier of a twin-engined aircraft, an aircraft with a tricycle undercarriage, a jet aircraft, and a rotary-wing aircraft. He flew almost every category of Royal Navy and Royal Air Force aircraft: glider, fighter, bomber, airliner, amphibian, flying boat and helicopter. During World War II, he flew many types of captured German, Italian, and Japanese aircraft, including new jet and rocket aircraft. He was a pioneer of jet technology into the postwar era. Early life Brown was born in Leith, near Edinburgh, in the United Kingdom. His father was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spin (flight)
In flight dynamics a spin is a special category of stall resulting in autorotation (uncommanded roll) about the aircraft's longitudinal axis and a shallow, rotating, downward path approximately centred on a vertical axis. Spins can be entered intentionally or unintentionally, from any flight attitude if the aircraft has sufficient yaw while at the stall point. In a normal spin, the wing on the inside of the turn stalls while the outside wing remains flying. It is possible for both wings to stall, but the angle of attack of each wing, and consequently its lift and drag, are different. Either situation causes the aircraft to autorotate toward the stalled wing due to its higher drag and loss of lift. Spins are characterized by high angle of attack, an airspeed below the stall on at least one wing and a shallow descent. Recovery and avoiding a crash may require a specific and counter-intuitive set of actions. A spin differs from a spiral dive, in which neither wing is stalled a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stall (flight)
In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', p. 486. Aviation Supplies & Academics, 1997. This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is typically about 15°, but it may vary significantly depending on the fluid, foil, and Reynolds number. Stalls in fixed-wing flight are often experienced as a sudden reduction in lift as the pilot increases the wing's angle of attack and exceeds its critical angle of attack (which may be due to slowing down below stall speed in level flight). A stall does not mean that the engine(s) have stopped working, or that the aircraft has stopped moving—the effect is the same even in an unpowered glider aircraft. Vectored thrust in aircraft is used to maintain altitude or controlled flight with wings stalled by replacing lost wing lift with engine or propeller t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glider (sailplane)
A glider or sailplane is a type of glider aircraft used in the leisure activity and sport of gliding (also called soaring). This unpowered aircraft can use naturally occurring currents of rising air in the atmosphere to gain altitude. Sailplanes are aerodynamically streamlined and so can fly a significant distance forward for a small decrease in altitude. In North America the term 'sailplane' is also used to describe this type of aircraft. In other parts of the English-speaking world, the word 'glider' is more common. Types Gliders benefit from producing the least drag for any given amount of lift, and this is best achieved with long, thin wings, a slender fuselage and smooth surfaces with an absence of protuberances. Aircraft with these features are able to soar – climb efficiently in rising air produced by thermals or hills. In still air, sailplanes can glide long distances at high speed with a minimum loss of height in between. Sailplanes have rigid wings and eithe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zündapp Z 9-092
Zündapp (a.k.a. Zuendapp) was a major German motorcycle manufacturer founded in 1917 in Nuremberg by Fritz Neumeyer, together with the Friedrich Krupp AG and the machine tool manufacturer Thiel under the name "Zünder- und Apparatebau G.m.b.H." as a producer of detonators (Zünder- und Apparatebau is German for Igniter and Apparatus). In 1919, as the demand for weapons parts declined after World War I, Neumeyer became the sole proprietor of the company, and two years later he diversified into the construction of motorcycles. Following World War II, Zündapp expanded into the microcar, moped and scooter markets. The company collapsed in 1984. Early history: 1919–45 The first Zündapp motorcycle was the model Z22 in 1921. This was the ''Motorrad für Jedermann'' ("motorcycle for everyone"), a simple, reliable design that was produced in large series. Zündapp's history of heavy motorcycles began in 1933 with the K-series. The "K" refers to the type of drivetrain that t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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