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A kitewing is a wing-shaped sail designed to use wind power to provide speed and lift to riders in outdoor environments. It can be used on a number of different surfaces when paired with the appropriate vehicle: * skis (on snow or ice), * snowboard (on snow or ice) * ice skates (on ice) * roller skates (on asphalt) * kiteblades (on asphalt, packed sand or grass) * mountain board (on asphalt, packed sand or grass) * dirtsurfer (on tightly packed sand, grass, asphalt and other terrain) The difference between a kitewing and a sports kite or traction kite is that a kitewing does not have a separate control system (see kite control systems). Instead, a kitewing is held directly in the hands of the user, which provides greater control, stability and depower when compared to a traditional power kite. In addition a kitewing does not have lines to tangle, and can be manoeuvred easily to perform a wide variety of tricks, turns and fast speeds. This additional control also makes a kitewing safer to use. The instant depower reduces the risk of riders being overrun in strong gusts, and the proximity of the kitewing to the rider makes it safer for other users of the space as there is no risk of injury from kite lines. A Kitewing can be used in varied wind ranges. For initial learning only a small space and low wind speeds are required to allow riders to familiarise themselves with the Kitewing assembly and handling characteristics. In the correct wind conditions an experienced rider can reach speeds up to 90 km/hour. Some very experienced riders can perform controlled jumps of up to 500 meters (on declining terrain) or perform jump turns and other advanced manoeuvres. ==Types and sizes== The users should choose a kitewing depending on their body weight, the intended surface of use and the type of vehicle they intend to use. Any size can be used on any surface with any vehicle, however some sizes are suited better to some purposes. The smaller ones are better suited to learning. A small kitewing can provide improved manoeuvrability and increased speed in hard wind conditions. A larger version is better suited for use on sand or grass or other surfaces with more friction. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Kitewing」の詳細全文を読む スポンサード リンク
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