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Northrop Grumman Switchblade
The Northrop Grumman Switchblade was a proposed variable sweep oblique wing unmanned aerial vehicle studied by Northrop Grumman for the United States. The programme was cancelled in 2008, without any aircraft having flown. History During WWII, Messerschmitt and Blohm + Voss studied the variable-geometry oblique wing as a solution for high-speed jet aircraft, respectively as the Messerschmitt P.1109 and Blohm & Voss P 202. From 1979 to 1982, NASA successfully flew the piloted AD-1 demonstrator aircraft which validated the concept. The United States Defence Advanced Research Projects Agency (DARPA) subsequently awarded Northrop Grumman a US$10.3 million contract for risk reduction and preliminary planning for an oblique flying wing demonstrator. The program aimed at producing a technology demonstrator aircraft to explore the various challenges which the radical design entails. The proposed aircraft would be a purely flying wing (an aircraft with no other auxiliary surfaces s ... [...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] |
Flying Wing
A flying wing is a tailless fixed-wing aircraft that has no definite fuselage, with its crew, payload, fuel, and equipment housed inside the main wing structure. A flying wing may have various small protuberances such as pods, nacelles, blisters, booms, or vertical stabilizers. Similar aircraft designs, that are not technically flying wings, are sometimes casually referred to as such. These types include blended wing body aircraft and lifting body aircraft, which have a fuselage and no definite wings. A pure flying wing is theoretically the lowest drag design configuration for a fixed wing aircraft. However, because it lacks conventional stabilizing surfaces and the associated control surfaces, in its purest form the flying wing suffers from being unstable and difficult to control. The basic flying wing configuration became an object of significant study during the 1920s, often in conjunction with other tailless designs. In the Second World War, both Nazi Germany and the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicles Of The United States
An uncrewed vehicle or unmanned vehicle is a vehicle without a person on board. Uncrewed vehicles can either be under telerobotic control—remote controlled or remote guided vehicles—or they can be autonomously controlled—autonomous vehicles—which are capable of sensing their environment and navigating on their own. Types There are different types of uncrewed vehicles: * Remote control vehicle (RC), such as radio-controlled cars or radio-controlled aircraft * Unmanned ground vehicle (UGV), such as the autonomous cars, or unmanned combat vehicles (UCGV) * Unmanned ground and aerial vehicle (UGAV), unmanned vehicle with hybrid locomotion methods * Unmanned aerial vehicle (UAV), unmanned aircraft commonly known as "drone" ** Unmanned combat aerial vehicle (UCAV) **Medium-altitude long-endurance unmanned aerial vehicle (MALE) ** Miniature UAV (SUAV) ** Delivery drone ** Micro air vehicle (MAV) ** Target drone * Autonomous spaceport drone ship * Uncrewed surface vehicle (USV) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abandoned Military Aircraft Engine Projects Of The United States
Abandon, abandoned, or abandonment may refer to: Common uses * Abandonment (emotional), a subjective emotional state in which people feel undesired, left behind, insecure, or discarded * Abandonment (legal), a legal term regarding property ** Child abandonment, the extralegal abandonment of children ** Lost, mislaid, and abandoned property, legal status of property after abandonment and rediscovery * Abandonment (mysticism) Art, entertainment, and media Film * ''Abandon'' (film), a 2002 film starring Katie Holmes * ''Abandoned'' (1949 film), starring Dennis O'Keefe * ''Abandoned'' (1955 film), the English language title of the Italian war film ''Gli Sbandati'' * ''Abandoned'' (2001 film), a Hungarian film * ''Abandoned'' (2010 film), starring Brittany Murphy * ''Abandoned'' (2015 film), a television movie about the shipwreck of the ''Rose-Noëlle'' in 1989 * ''Abandoned'' (2022 film), starring Emma Roberts * ''The Abandoned'' (1945 film), a 1945 Mexican film * ''The Aban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northrop Grumman Aircraft
Northrop may refer to: Businesses * Northrop Corporation, an American aircraft manufacturer formed in 1939 * Northrop Grumman, an American aircraft manufacturer formed in 1994 as a merger of the above company with Grumman * Northrop Loom, an American designed weaving loom Places United States * Northrop, Minnesota, a town * Northrop, Minneapolis, Minnesota, a neighborhood * Northrop Auditorium, on the Minneapolis campus of the University of Minnesota * Northrop Field, a former stadium for the University of Minnesota * Northrop High School, Fort Wayne, Indiana * Northrop University, a former aviation institute * Mount Northrop, Minnesota People * Northrop (surname), including a list of people with the name * Northrop Frye Herman Northrop Frye (July 14, 1912 – January 23, 1991) was a Canadian literary critic and literary theorist, considered one of the most influential of the 20th century. Frye gained international fame with his first book, '' Fearful Symmet ... (1912–199 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Combat Aerial Vehicle
An unmanned combat aerial vehicle (UCAV), also known as a combat drone, colloquially shortened as drone or battlefield UAV, is an unmanned aerial vehicle (UAV) that is used for intelligence, surveillance, target acquisition, and reconnaissance and carries aircraft ordnance such as missiles, ATGMs, and/or bombs in hardpoints for drone strikes. These drones are usually under real-time human control, with varying levels of autonomy. Unlike unmanned surveillance and reconnaissance aerial vehicles, UCAVs are used for both drone strikes and battlefield intelligence. Aircraft of this type have no onboard human pilot. As the operator runs the vehicle from a remote terminal, equipment necessary for a human pilot is not needed, resulting in a lower weight and a smaller size than a manned aircraft. Many countries have operational domestic UCAVs, and many more have imported armed drones or are in the process of developing them. History One of the earliest explorations of the concep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Thomas Jones (engineer)
Robert T. Jones, (May 28, 1910 – August 11, 1999), was an aerodynamicist and aeronautical engineer for NACA and later NASA. He was known at NASA as "one of the premier aeronautical engineers of the twentieth century". Designer One of Jones' first jobs was with the Nicholas-Beazley Airplane Company. Jones developed the Pobjoy Special air racer prior to the company shutting down in the depression. Research Jones was a researcher at NACA's Langley Research Center in Hampton, Virginia. As a self-trained aerodynamicist and mathematician, he had built up a national, if not international, reputation through his perceptive and original work at Langley. For this work he was given the IAS Sylvanus Albert Reed Award in 1946. Jones spent much of his time at Langley working in the Stability Research Division which pioneered many concepts that were incorporated into U.S. aircraft. In January 1945, Jones developed a theory of the delta wing based on thin-airfoil theory. Others at Lang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Unmanned Aerial Vehicles
UAVs include both autonomous (capable of operating without human input) Drone (aircraft), drones and remotely piloted vehicles (RPVs). A UAV is capable of controlled, sustained level flight and is powered by a jet, reciprocating, or electric engine. In the twenty first century technology reached a point of sophistication that the UAV is now being given a greatly expanded role in many areas of aviation. A UAV differs from a cruise missile in that a UAV is intended to be recovered after its mission, while a cruise missile impacts its target. A military UAV may carry and fire munitions on board, while a cruise missile is a munition. Loitering munitions are a class of unmanned aircraft intermediate between them. Early development Austrian incendiary balloon attack on Venice The earliest recorded use of an unmanned aerial vehicle for warfighting occurred in July 1849, serving as a balloon carrier (the precursor to the aircraft carrier) [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerodynamics
Aerodynamics, from grc, ἀήρ ''aero'' (air) + grc, δυναμική (dynamics), is the study of the motion of air, particularly when affected by a solid object, such as an airplane wing. It involves topics covered in the field of fluid dynamics and its subfield of gas dynamics. The term ''aerodynamics'' is often used synonymously with gas dynamics, the difference being that "gas dynamics" applies to the study of the motion of all gases, and is not limited to air. The formal study of aerodynamics began in the modern sense in the eighteenth century, although observations of fundamental concepts such as aerodynamic drag were recorded much earlier. Most of the early efforts in aerodynamics were directed toward achieving Aircraft#Heavier than air – aerodynes, heavier-than-air flight, which was first demonstrated by Otto Lilienthal in 1891. Since then, the use of aerodynamics through mathematical analysis, empirical approximations, wind tunnel experimentation, and computer simu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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