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Boeing B-52
The Boeing B-52 Stratofortress is an American long-range, subsonic aircraft, subsonic, jet-powered strategic bomber. The B-52 was designed and built by Boeing, which has continued to provide support and upgrades. It has been operated by the United States Air Force (USAF) since 1955 and was flown by NASA from 1959 to 2007. The bomber can carry up to of weapons and has a typical Range (aeronautics), combat range of around without aerial refueling. After Boeing won the initial contract in June 1946, the aircraft's design evolved from a straight wing, straight-wing aircraft powered by six turboprop engines to the final prototype YB-52 with eight turbojet engines and swept wings. The B-52 took its maiden flight in April 1952. Built to carry nuclear weapons for Cold War Nuclear strategy, deterrence missions, the B-52 Stratofortress replaced the Convair B-36 Peacemaker. The bombers flew under the Strategic Air Command (SAC) until it was disestablished in 1992 and its aircraft abso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling 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 Magazine, 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 outsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maiden Flight
The maiden flight, also known as first flight, of an aircraft is the first occasion on which it leaves the ground under its own power. The same term is also used for the first launch of rockets. In the early days of aviation it could be dangerous, because the exact handling characteristics of the aircraft were generally unknown. The maiden flight of a new type is almost invariably flown by a highly experienced test pilot. Maiden flights are usually accompanied by a chase plane, to verify items like altitude, airspeed, and general airworthiness. A maiden flight is only one stage in the development of an aircraft type. Unless the type is a pure research aircraft (such as the X-15), the aircraft must be tested extensively to ensure that it delivers the desired performance with an acceptable margin of safety. In the case of civilian aircraft, a new type must be certified by a governing agency (such as the Federal Aviation Administration in the United States) before it can enter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable-sweep Wing
A variable-sweep wing, colloquially known as a "swing wing", is an airplane wing, or set of wings, that may be modified during flight, swept back and then returned to its previous straight position. Because it allows the aircraft's shape to be changed, it is a feature of a variable-geometry aircraft. A straight wing is most efficient for low-speed flight, but for an aircraft designed for transonic or supersonic flight it is essential that the wing be swept. Most aircraft that travel at those speeds usually have wings (either swept wing or delta wing) with a fixed sweep angle. These are simple and efficient wing designs for high speed flight, but there are performance tradeoffs. One is that the stalling speed is increased, necessitating long runways (unless complex high-lift wing devices are built in). Another is that the aircraft's fuel consumption during subsonic cruise is higher than that of an unswept wing. These tradeoffs are particularly acute for naval carrier-bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American XB-70 Valkyrie
The North American Aviation XB-70 Valkyrie is a retired prototype version of the planned nuclear-armed, deep-penetration supersonic strategic bomber for the United States Air Force Strategic Air Command. Designed in the late 1950s by North American Aviation (NAA) to replace the B-52 Stratofortress and B-58 Hustler, the six-engine, delta-winged Valkyrie could cruise for thousands of miles at Mach 3+ while flying at . At these speeds, it was expected that the B-70 would be practically immune to interceptor aircraft, the only effective weapon against bomber aircraft at the time. The bomber would spend only a brief time over a particular radar station, flying out of its range before the controllers could position their fighters in a suitable location for an interception. Its high speed made the aircraft difficult to see on radar displays and its high-altitude and high-speed capabilities could not be matched by any contemporaneous Soviet interceptor or fighter aircraft. The i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convair B-58 Hustler
The Convair B-58 Hustler, designed and produced by American aircraft manufacturer Convair, was the first operational bomber capable of Mach 2 flight. The B-58 was developed during the 1950s for the United States Air Force (USAF) Strategic Air Command (SAC). To achieve the high speeds desired, Convair chose a delta wing design used by contemporary interceptors such as the Convair F-102. The bomber was powered by four General Electric J79 engines in underwing pods. It had no bomb bay; it carried a single nuclear weapon plus fuel in a combination bomb/fuel pod underneath the fuselage. Later, four external hardpoints were added, enabling it to carry up to five weapons such as one Mk 53 and four Mk 43 warheads. The B-58 entered service in March 1960, and flew for a decade with two SAC bomb wings: the 43rd Bombardment Wing and the 305th Bombardment Wing. It was considered difficult to fly, imposing a high workload upon its three-man crews. Designed to replace the subsonic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Offensive Material
Offensive may refer to: * Offensive (military), type of military operation * Offensive, the former name of the Dutch political party Socialist Alternative * Fighting words, spoken words which would have a tendency to cause acts of violence by the person to whom they are addressed * Pejorative words * Profanity Profanity, also known as swearing, cursing, or cussing, is the usage of notionally word taboo, offensive words for a variety of purposes, including to demonstrate disrespect or negativity, to relieve pain, to express a strong emotion (such a ..., strongly impolite, rude or offensive language * Political correctness, non-offensive language See also * * Offense (other) * Offender (other) * Charm offensive (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bowdlerized
An expurgation of a work, also known as a bowdlerization, is a form of censorship that involves purging anything deemed noxious or offensive from an artistic work or other type of writing or media. The term ''bowdlerization'' is often used in the context of the expurgation of lewd material from books. The term derives from Thomas Bowdler's 1818 edition of William Shakespeare's plays, which he reworked in ways that he felt were more suitable for women and children. He similarly edited Edward Gibbon's ''Decline and Fall of the Roman Empire''. A less common term used in this context, also based on common editorial practice, is ''Ad usum Delphini'', referring to a series of consciously censored classical works. Another term used in related discourse is censorship by so-called political correctness. When this practice is adopted voluntarily, by publishers of new editions or translators, it is seen as a form of self-censorship. Texts subject to expurgation are derivative works, some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force Global Strike Command
The Air Force Global Strike Command (AFGSC) is a List of Major Commands of the United States Air Force, Major Command (MAJCOM) of the United States Air Force, headquartered at Barksdale Air Force Base, Louisiana. AFGSC provides combat-ready forces to conduct strategic nuclear deterrence and global strike operations in support of combatant commanders. Air Force Global Strike Command is the Air Force's service component to the United States Strategic Command (USSTRATCOM). Air Force Global Strike Command is the direct descendant unit of the Cold War–era Strategic Air Command (Strategic Air Command, SAC). It holds the lineage, history and honors of SAC. History : ''See: Strategic Air Command for history prior to 2009'' Following the 2007 United States Air Force nuclear weapons incident when six AGM-129 Advanced Cruise Missiles (ACM), each loaded with a W80-1 variable yield nuclear warhead, were mistakenly loaded onto a B-52H at Minot AFB and transported to Barksdale AFB, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Combat Command
The Air Combat Command (ACC) is one of nine List of Major Commands of the United States Air Force, Major Commands (MAJCOMs) in the United States Air Force, reporting to Headquarters, United States Air Force (HAF) at the Pentagon. It is the primary provider of air combat forces for the Air Force, and it is the direct successor to Tactical Air Command. Air Combat Command is headquartered at Langley Air Force Base, Joint Base Langley–Eustis, Virginia, United States. ACC directly operates 1,110 fighter aircraft, fighter, attack aircraft, attack, Reconnaissance aircraft, reconnaissance, combat search and rescue, Airborne early warning and control, airborne command and control and Electronic-warfare aircraft, electronic aircraft along with Command and control, command, control, computing, communications and intelligence (C4I) systems, Air Force ground forces, conducts Information warfare, global information operations, and controls Air Force Intelligence. As of 6 April 2023 ACC oper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strategic Air Command
Strategic Air Command (SAC) was a United States Department of Defense Specified Command and a United States Air Force (USAF) Major Command responsible for command and control of the strategic bomber and intercontinental ballistic missile components of the United States military's strategic nuclear weapon, strategic nuclear forces from 1946 to 1992. SAC was also responsible for strategic reconnaissance aircraft; airborne command posts; and most of the USAF's aerial refueling aircraft. SAC primarily consisted of the Second Air Force (2AF), Eighth Air Force (8AF) and the Fifteenth Air Force (15AF), while SAC headquarters (HQ SAC) included Directorates for Operations & Plans, Intelligence, Command & Control, Maintenance, Training, Communications, and Personnel. At a lower echelon, SAC headquarters divisions included Aircraft Engineering, Missile Concept, and Strategic Communications. In 1992, as part of an overall post-Cold War reorganization of the U.S. Air Force, SAC was disesta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convair B-36 Peacemaker
The Convair B-36 "Peacemaker" is a strategic bomber built by Convair and operated by the United States Air Force (USAF) from 1949 to 1959. The B-36 is the largest mass-produced piston-engined aircraft ever built, although it was exceeded in span and weight by the one-off Hughes H-4 Hercules. It has the longest wingspan of any combat aircraft. The B-36 was capable of intercontinental flight without refueling. Entering service in 1948, the B-36 was the primary nuclear weapons delivery vehicle of Strategic Air Command (SAC) until it was replaced by the jet-powered Boeing B-52 Stratofortress beginning in 1955. All but four aircraft have been scrapped. Development The design of the B-36 can be traced to early 1941, prior to the entry of the United States into World War II. At the time, Britain was at risk of falling to the Nazi "Blitz" attacks, making strategic bombing attacks by the United States Army Air Corps (USAAC) against Germany impossible with the aircraft available.. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
