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Power kite
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== Bridle configuration == The lift generated by the kite and other flying characteristics are affected by the kite's angle of attack, which is set by the bridle; the arrangement of lines which terminate the main kite lines and attach to a number of points across the kite's surface. Power kites having 4 or 5 lines come in two variants, fixed bridle and depowerable. === Fixed bridle === Fixed bridle kites have a fixed [[angle of attack]] which is set by the bridle. Small adjustments may be possible by adjusting the bridle with the kite on the ground, however the angle of attack is not adjustable whilst the kite is airborne. A high angle of attack setting results in more power from the kite, but at the expense of speed and ability to fly close to the wind. A low angle of attack results in less power, but speed is increased and the kite can fly a lot closer to the edge of the wind window.<ref>{{Cite web|url=http://www.flexifoil.com/template/Manuals/Blade%20IV%20-%20Triple%20A%20bridle%20adjuster.pdf|title=The Triple A Bridle Adjustment System}}</ref> Fixed bridle kites may be used with handles or a bar, with handles typically being preferable for activities such as kite jumping and kite buggying, and a bar being preferable for kite landboarding. === Depowerable === Depowerable kites are used with a control bar and harness system, with the kite's primary power lines attached to the user's harness through a hole in the centre of the bar. The bar has a few inches of travel along the lines, and the lines are configured such that the user may pull the bar towards themselves to increase the kite's angle of attack, increasing the lift and thus the power delivered through the harness whilst the kite is in flight. Kites used for kitesurfing are almost invariably depowerable, and some modern kites such as [[bow kite]]s allow power to be reduced by almost 100% for increased safety and versatility. [[Image:Lei-bow-foil-kites.svg|thumb|Illustration of [[Leading edge inflatable kite|LEI]] (R), [[Bow kite|bow]] (L) and [[Foil kite|foil]] (T) power kites]] [[Image:Powerkite.ogv|thumb|left|Power kite video]]
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