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Kite
A kite is a tethered heavier than air flight, heavier-than-air craft with wing surfaces that react against the air to create Lift (force), lift and Drag (physics), drag forces. A kite consists of wings, tethers and anchors. Kites often have a bridle and tail to guide the face of the kite so the wind can lift it. Some kite designs do not need a bridle; box kites can have a single attachment point. A kite may have fixed or moving anchors that can balance the kite. The name is derived from the kite (bird), kite, the hovering bird of prey. There are several shapes of kites. The Lift (force), lift that sustains the kite in flight is generated when air moves around the kite's surface, producing low pressure above and high pressure below the wings. The interaction with the wind also generates horizontal Drag (physics), drag along the direction of the wind. The resultant force vector from the lift and drag force components is opposed by the tension of one or more of the rope, lines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kite Surfing
Kiteboarding or kitesurfing is a sport that involves using wind power with a large power kite to pull a rider across a water, land, snow, sand, or other surface. It combines the aspects of paragliding, surfing, windsurfing, skateboarding, snowboarding, and wakeboarding. Kiteboarding is among the less expensive and more convenient sailing sports. After some concepts and designs that emerged in the late 1970s and early 1980s were successfully tested, the sport received a wider audience in the late 1990s and became mainstream at the turn of the century. It has freestyle, wave-riding, and racing competitions. The sport held the speed sailing record, reaching before being eclipsed by the Vestas Sailrocket. Worldwide, there are 1.5 million kitesurfers, while the industry sells around 100,000 to 150,000 kites per year. Most power kites are leading edge inflatable kite, leading-edge inflatable kites or foil kites attached by about of flying lines to a control bar and a harn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sport Kites
A sport kite, also commonly known as a stunt kite, is a type of multiline kite that can be maneuvered in the air. A related kite, also controllable and used for recreation, but capable of generating a significant amount of pull and used for providing movement, is the power kite. Configuration One common configuration for a sport kite is a roughly triangular "delta" shape based on the Rogallo wing, with two lines for control. Another common configuration is a W-shaped panel based on the Hadzicki wing, with four lines for control. These kites are normally constructed from lightweight ripstop nylon or ripstop polyester with spars made from carbon fiber tubing. The flying lines are made from braided ultra-high-molecular-weight polyethylene, which is light, does not stretch under tension and stays slippery even when wrapped many times. Dual-line sport kites are controlled by the pilot adding and releasing tension on the right and left lines. A pilot may pull on the right-hand li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Kite
A power kite or traction kite is a large kite designed to provide significant pull to the user. Types The two most common forms are the foil, and the leading edge inflatable. There are also other less common types of power kite including rigid-framed kites and soft single skin kites. There are several different control systems used with these kites which have two to five lines and a bar or handles. Foil kites consist of a number of cells with cloth ribs in each cell. It is the profile of these ribs that gives the kite its aerofoil shape and enable it to generate lift. The most common type is the ram-air foil, where each cell has a gauze-covered opening at the front, meaning air is forced in during flight, giving the kite its stiffness and enabling it to hold its profile. Some ram-air foils are closed-cell, where a one-way valve locks the air inside the cells, giving some increased water relaunch capability. Leading edge inflatable kites (LEIs) are made of a single skin of f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kite (bird)
Kite is the common name for certain birds of prey in the family Accipitridae, particularly in the subfamilies Elaninae and Perninae and certain genera within Buteoninae."kite". Encyclopædia Britannica. Encyclopædia Britannica Online. Encyclopædia Britannica Inc., 2014. Web. 24 Nov. 2014 . The term is derived from Old English , onomatopoeic from the call notes of the buzzard (''Buteo buteo'') and red kite (''Milvus milvus''). The name, having no cognate names in other European languages, is thought to have arisen in England; it apparently originally denoted the buzzard, as the red kite was then known by the widespread Germanic name 'glede' or 'glead', and was only later transferred to the red kite as "fork-tailed kite" by Christopher Merret in his 1667 ''Pinax Rerum Naturalium Britannicarum''. By the time of Thomas Pennant's 1768 ''British Zoology'', the name had become fixed on the red kite, other birds named 'kite' around the world being named from their then-percei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow Kiting
Snowkiting or kite skiing is an outdoor winter sport where people use kite power to glide on snow or ice. The skier uses a kite to give them power over large jumps. The sport is similar to water-based kiteboarding, but with the footwear used in snowboarding or skiing. The principles of using the kite are the same, but in different terrain. In the early days of snowkiting, foil kites were the most common type; nowadays many kiteboarders use inflatable kites. However, since 2013, newly developed racing foil kites seem to dominate speed races and expedition races, like Red Bull Ragnarok (held on the Norwegian Hardangervidda plateau) and the Vake mini-expedition race (held at Norway's most northern Varanger peninsula). Snowkiting differs from other alpine sports in that it is possible for the snowkiter to travel uphill and downhill with any wind direction. Like kiteboarding, snowkiting can be very hazardous and should be learned and practiced with care. Snowkiting has become more po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Man-lifting Kite
A man-lifting kite is a kite designed to lift a person from the ground. Historically, man-lifting kites have been used chiefly for reconnaissance. Interest in their development declined with the advent of powered flight at the beginning of the 20th century. Recreational man-lifting kites gradually gained popularity through the latter half of the 20th century, branching into multiple sports. In the 21st century man-lifting kites are often used in kitesurfing, where brief launches can be followed by safe water landings and parasailing, where kites are towed behind a vehicle. Early history Man-carrying kites were used in ancient China for both civil and military purposes, and sometimes used as a punishment. The ''Book of Sui'', dating from 636 AD, records that the tyrant Gao Yang, Emperor Wenxuan of Northern Qi (r. 550–559), executed prisoners by ordering them to 'fly' using bamboo mats. The (1044) ''Zizhi Tongjian'' records that in 559, all the condemned kite airmen died ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kite Landboarding
Kite landboarding, also known as land kiteboarding or flyboarding, is based on the sport of kitesurfing, where a rider on a surf-style board is pulled over water by a kite. Kite landboarding involves the use of a mountain board or landboard, which is essentially an oversized skateboard with large pneumatic wheels and foot-straps. Kite landboarding is a growing sport, and there are several competitions. Kite landboarding is attracting growing publicity although it is not yet as popular or as well known as kitesurfing. Technique Typically, kite landboarding takes place in large open areas where the wind is constant and there are no obstructions such as trees or people. Large hard-packed sandy beaches are typical landboarding locations because of the large space available and wind conditions. The rider starts off by getting the kite into a neutral position overhead. Once strapped onto the board, the rider can orient the kite such that it pulls the rider across the ground. This is do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paravane (water Kite)
The paravane is a towed winged (hydrofoiled) underwater object—a water kite. Paravanes have been used in sport or commercial fishing, marine exploration and industry, sports and military applications. The wings of paravanes are sometimes in a fixed position, else positioned remotely or by actions of a human pilot. Pioneer parafoil developer Domina Jalbert considered water kites hardly different from air kites. However, paravanes generally orient themselves in respect to the water surface. They may have sensors that record or transmit data or are used entirely for generating a holding force like a sea anchor does. While a sea-anchor allows a vessel to drift more slowly downwind, the paravane travels sideways to the pull at one to several times the pulling speed. Paravanes are, like air kites, often symmetrical in one axis and travel in two directions, the change being effected by gybing, shunting, or flipping over. Military applications The paravane , a form of towed underwat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kite Buggying
A kite buggy is a light, purpose-built vehicle powered by a traction kite (power kite). It is single-seated and has one steerable front wheel and two fixed rear wheels. The driver sits in the seat located in the middle of the vehicle and accelerates and slows down by applying steering manoeuvres in coordination with flying manoeuvres of the kite. This activity is called kite buggying. The speed achieved in kite buggies by skilled drivers can range up to around 110 km/h (70 mph), hence protective clothing, including a safety helmet, is commonly worn. The kite buggy was promulgated by George Pocock (inventor) in the UK in 1827 and kite buggies were available commercially in US and UK in the late 1970s. Peter Lynn is generally attributed with the modern popularization of buggies and kite buggying with his introduction of strong, lightweight, affordable buggies in the early 1990s. Kite buggying is similar to land yachting, windsurfing or even yachting, and therefore much ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Box Kite
A box kite is a high-performance Kite flying, kite, noted for developing relatively high Lift (force), lift; it is a type within the family of cellular kites. The typical design has four parallel struts. The box is made rigid with diagonal crossed struts. There are two sails, or ''ribbons'', whose width is about a quarter of the length of the box. The ribbons wrap around the ends of the box, leaving the ends and middle of the kite open. In flight, one strut is the bottom, and the bridle is tied between the top and bottom of this strut. The dihedrals of the sails help stability. The box kite was invented in 1893 by Lawrence Hargrave, an English-born Australian, as part of his attempt to develop a manned flying machine. Hargrave linked several of his box kites (Hargrave cells) together, creating sufficient lift for him to fly some 16 ft (4.9 m) off the ground. A winged development of this kite is known as the Cody kite following its development by Samuel Franklin Cody. Military us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Kite Festivals
This is a list of kite festivals. Annual kite festivals See also *Sport kite *Kite External linksDrachen Foundation's 10 best kite festivals References {{Kites Kite festivals, Lists of festivals by topic, Kite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavier Than Air Flight
The history of aviation spans over two millennia, from the earliest innovations like kites and attempts at tower jumping to Supersonic speed, supersonic and hypersonic flight in powered, heavier-than-air flight, heavier-than-air jet aircraft. Kite flying in China, dating back several hundred years BC, is considered the earliest example of man-made flight. In the 15th-century Leonardo da Vinci created several flying machine designs incorporating aeronautical concepts, but they were unworkable due to the limitations of contemporary knowledge. In the late 18th century, the Montgolfier brothers invented the Hot air balloon, hot-air balloon which soon led to manned flights. At almost the same time, the discovery of hydrogen gas led to the invention of the hydrogen balloon. Various theories in mechanics by physicists during the same period, such as fluid dynamics and Newton's laws of motion, led to the development of modern aerodynamics; most notably by Sir George Cayley. Balloons, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
