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Pylon Turn
A pylon turn is a flight maneuver in which an aircraft banks into a circular turn, in such a way that an imaginary line projecting straight out the side of the aircraft (nominally the wing) points to a fixed point on the ground. The maneuver originated early in the 20th century in air racing. In some contexts, simply making a turn around a fixed point on the ground (such as a physical pylon) is called a "pylon turn". In these cases, the altitude may be incorrect for the maneuver to be a proper "pylon turn" where all three parameters (altitude, speed, bank angle) come together for the wing to point to the fixed turning center on the ground. Racing The pylon turn was originally used in air racing, where courses were set up with pylons to mark a location on the ground, and the planes would have to turn around at that point before returning to the airstrip. Pylons are also used in triples to set up a triangular circuit for aviation races—races in which all competitors must stay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wedell Williams Model 44 II Poster 1932 (17158838951)
The House of Wedel (or Wedell) is an old and distinguished German noble family, from Stormarn in what is now Schleswig-Holstein. The family members held the title of Prince, Count and Baron. History The family is first mentioned in records through ''Heinricus'', ''Hasso'' and ''Reimbernus de Wedele'' in 1212, and traces its familial line to the monastery ''Vogt'' Heinrich, of the monastery "Novum Monasterium“, who is mentioned on 13 September 1149 in Ottenbüttel (Steinburg, Schleswig-Holstein). In December 1302 the brothers Heinrich, Johannes and Reinbert recorded that their uncle Reinhard the Elder was selling the village of Spitzerdorf to the Hamburg cathedral chapter in their presence and with their consent. Three brothers from the family appear in 1212 as witnesses in a record by Heinrich von Barmstede. A member of the family was captured after the second battle of Uetersen in 1306, broken on the wheel and quartered. The family exists in three branches. In 1328 Emperor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AC-47 Spooky
The Douglas AC-47 Spooky (also nicknamed "Puff, the Magic Dragon") was the first in a series of fixed-wing gunships developed by the United States Air Force during the Vietnam War. It was designed to provide more firepower than light and medium ground-attack aircraft in certain situations when ground forces called for close air support. Design and development The AC-47 was a United States Air Force (USAF) C-47, (the military version of the DC-3) that had been modified by mounting three 7.62 mm General Electric miniguns to fire through two rear window openings and the side cargo door, all on the left (pilot's) side of the aircraft, to provide close air support for ground troops. Other armament configurations could also be found on similar C-47-based aircraft around the world. The guns were actuated by a control on the pilot's yoke whereby he could control the guns either individually or together, although gunners were also among the crew to assist with gun failures and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First-person Shooter
First-person shooter (FPS) is a sub-genre of shooter video games centered on gun and other weapon-based combat in a first-person perspective, with the player experiencing the action through the eyes of the protagonist and controlling the player character in a three-dimensional space. The genre shares common traits with other shooter games, and in turn falls under the action game genre. Since the genre's inception, advanced 3D and pseudo-3D graphics have challenged hardware development, and multiplayer gaming has been integral. The first-person shooter genre has been traced back to ''Wolfenstein 3D'' (1992), which has been credited with creating the genre's basic archetype upon which subsequent titles were based. One such title, and the progenitor of the genre's wider mainstream acceptance and popularity, was ''Doom'' (1993), often considered the most influential game in this genre; for some years, the term ''Doom'' clone was used to designate this genre due to ''Doom''s i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strafing (gaming)
Strafing is the act of moving sideways in a video game relative to the player's forward direction. Strafing allows a player to keep the camera focused on a target such as an enemy, while moving in a different direction. Techniques Circle strafing Circle strafing is the technique of moving around an opponent in a circle while facing them. Circle strafing allows a player to fire continuously at an opponent while evading their attacks. Circle strafing is most useful in close-quarters combat where the apparent motion of the circle strafing player is much greater than that of their stationary enemy, and thus the chance of making the enemy lose track of their target is higher and/or the enemy is required to lead the target when firing. The effectiveness of circle strafing is mitigated when the opponent's weapon fires projectiles that travel instantaneously (also referred to as a hitscan weapon), or fires at a high rate, e.g. with a machine gun. Circle strafing is especially effecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gunship
A gunship is a military aircraft armed with heavy aircraft guns, primarily intended for attacking ground targets either as airstrike or as close air support. In modern usage the term "gunship" refers to fixed-wing aircraft having laterally-mounted heavy armaments (i.e. firing to the side) to attack ground or sea targets. These gunships are configured to circle the target instead of performing strafing runs. Such aircraft have their armament on one side harmonized to fire at the apex of an imaginary cone formed by the aircraft and the ground when performing a pylon turn ( banking turn). The term "gunship" originated in the mid-19th century as a synonym for gunboat and also referred to the heavily armed ironclad steamships used during the American Civil War. The term helicopter gunship is commonly used to describe armed helicopters. World War II aviation Bomber escort During 1942 and 1943, the lack of a usable escort fighter for the United States Army Air Forces in the Europ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eights On Pylons
Eights on pylons or pylon eights is a ground reference maneuver where an aircraft is flown in a figure eight pattern around two selected points on the ground (the pylons). However, eights on pylons differs from similar maneuvers such as eights along a road, eights across a road, or eights around pylons in that the objective of eights on pylons is not to maintain a specific altitude and ground track, but rather to fly the airplane so that the pylon remains fixed in place when viewed from the cockpit along a line parallel to the lateral axis of the aircraft. This is only possible when the aircraft is flown at the pivotal altitude corresponding to the current groundspeed. If the aircraft is flying in wind, the groundspeed will vary throughout the maneuver and thus the pivotal altitude will change also. However, the pivotal altitude varies only with the ground speed and not with the radius of turn or the angle of bank. So whether the maneuver is flown very close to the pylon with the ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed AC-130
The Lockheed AC-130 gunship is a heavily armed, long-endurance, ground-attack variant of the C-130 Hercules transport, fixed-wing aircraft. It carries a wide array of ground-attack weapons that are integrated with sophisticated sensors, navigation, and fire-control systems. Unlike other modern military fixed-wing aircraft, the AC-130 relies on visual targeting. Because its large profile and low operating altitudes around 7,000 feet (2,100 m) make it an easy target, its close air support missions are usually flown at night. The airframe is manufactured by Lockheed Martin, while Boeing is responsible for the conversion into a gunship and for aircraft support.AC-130U Gunship page . Boeing. Developed during the |
Minigun
The M134 Minigun is an American 7.62×51mm NATO six-barrel rotary machine gun with a high rate of fire (2,000 to 6,000 rounds per minute). It features a Gatling-style rotating barrel assembly with an external power source, normally an electric motor. The "Mini" in the name is in comparison to larger-caliber designs that use a rotary barrel design, such as General Electric's earlier 20 mm M61 Vulcan, and "gun" for the use of rifle ammunition as opposed to autocannon shells. "Minigun" refers to a specific model of weapon that General Electric originally produced, but the term "minigun" has popularly come to refer to any externally powered rotary gun of rifle caliber. The term is sometimes used loosely to refer to guns of similar rates of fire and configuration, regardless of power source and caliber. The Minigun is used by several branches of the U.S. military. Versions are designated ''M134'' and ''XM196'' by the United States Army, and ''GAU-2/A'' and ''GAU-17/A'' by the U.S. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnam War
The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vietnam and South Vietnam. The north was supported by the Soviet Union, China, and other communist states, while the south was United States in the Vietnam War, supported by the United States and other anti-communism, anti-communist Free World Military Forces, allies. The war is widely considered to be a Cold War-era proxy war. It lasted almost 20 years, with direct U.S. involvement ending in 1973. The conflict also spilled over into neighboring states, exacerbating the Laotian Civil War and the Cambodian Civil War, which ended with all three countries becoming communist states by 1975. After the French 1954 Geneva Conference, military withdrawal from Indochina in 1954 – following their defeat in the First Indochina War – the Viet Minh to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Racing
Air racing is a type of motorsport that involves airplanes or other types of aircraft that compete over a fixed course, with the winner either returning the shortest time, the one to complete it with the most points, or to come closest to a previously estimated time. History The first 'heavier-than-air' air race was held on 23 May 1909 - the Prix de Lagatinerie, at the Port-Aviation airport south of Paris, France. Four pilots entered the race, two started, but nobody completed the full race distance; though this was not unexpected, as the rules specified that whoever travelled furthest would be the winner if no-one completed the race. Léon Delagrange, who covered slightly more than half of the ten laps was declared the winner. Some other minor events were held before the ''Grande Semaine d'Aviation de la Champagne'' in 22–29 August 1909 at Reims, France. This was the first major international flying event, drawing the most important aircraft makers and pilots of the era, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AC-47 Tracers Over Saigon 1968 (colour)
The Douglas AC-47 Spooky (also nicknamed "Puff, the Magic Dragon") was the first in a series of fixed-wing gunships developed by the United States Air Force during the Vietnam War. It was designed to provide more firepower than light and medium ground-attack aircraft in certain situations when ground forces called for close air support. Design and development The AC-47 was a United States Air Force (USAF) C-47, (the military version of the DC-3) that had been modified by mounting three 7.62 mm General Electric miniguns to fire through two rear window openings and the side cargo door, all on the left (pilot's) side of the aircraft, to provide close air support for ground troops. Other armament configurations could also be found on similar C-47-based aircraft around the world. The guns were actuated by a control on the pilot's yoke whereby he could control the guns either individually or together, although gunners were also among the crew to assist with gun failures and simi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ground Speed
Ground speed is the horizontal speed of an aircraft relative to the Earth’s surface. It is vital for accurate navigation that the pilot has an estimate of the ground speed that will be achieved during each leg of a flight. An aircraft diving vertically would have a ground speed of zero. Information displayed to passengers through the entertainment system of airline aircraft usually gives the aircraft ground speed rather than airspeed. Ground speed can be determined by the vector sum of the aircraft's true airspeed and the current wind speed and direction; a headwind subtracts from the ground speed, while a tailwind adds to it. Winds at other angles to the heading will have components of either headwind or tailwind as well as a crosswind component. An airspeed indicator indicates the aircraft's speed relative to the air mass. The air mass may be moving over the ground due to wind, and therefore some additional means to provide position over the ground is required. This might be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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