Leading edge inflatable kite

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A leading edge inflatable kite or LEI is a single skin kite with inflatable bladders providing structure. It is useful as a power or traction kite. These kites are flown using 2, 4 or 5 control lines and a bar. (See also: kite control systems) A LEI is a great kite for water use because the inflated bladders cause it to float on the water surface. A LEI can sit on the water for an indefinite time and still be relaunched because unlike a double skin kite there are no chambers that can fill with water. Generally used for kitesurfing, leading edge inflatable kites come in many different sizes from approximately 8-20 metres.

The inflatable and Bow kite designs were invented by Dominique and Bruno Legaignoux.

Reference: http://www.inflatablekite.com/sitebow/BowPortraitgb.html