A power kite or traction kite is a large kite designed to provide significant pull to the user.
They come in three main forms: foils, leading edge inflatables and supported leading edge. There are also 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. Most foil kites are made for use on land as they are "opened celled" so air flows in and out easily, this can be used as a safety feature to depower the kite. There are a few exceptions for this with new foils that use closed cell technology; they float on the water while you relaunch.
Power kites are generally used in conjunction with a vehicle or board, such as in:
- kitesurfing on a kiteboard
- kite buggying on a purpose-built 3-wheeled cart
- kite landboarding on an all-terrain/mountain/land board
- kite skating on all-terrain roller skates
- snowkiting on skis or snowboards
- kite jumping, using a power kite for jumping above the ground
- man lifting, where a harnessed kite flier is moored to the ground or one or more people to provide tension and lift
- kiteboating, on a boat
Research is also under way in the use of kites to generate electric power to be fed into a power grid. Kites can be used to reach high altitude winds such as a jet stream, which are always present, even if ground level winds available to wind turbines are absent.
Kites of related design are used for sailing, including speed sailing. Jacob's Ladder, a kite-powered boat, set the C-Class world sailing speed record with a speed of 25 knots (46 km/h) in 1982, a record that stood for six years. A kiteboard was the first sailing craft to exceed a speed of 50 knots (93 km/h) in October 2008.
Power kites range in size from 1.5 to 50 m2 (16 to 540 sq ft). All kites are made for specific purposes: some for water, land, power or manoeuvrability.
Famous quotes containing the words power and/or kite:
“Let the maiden, with erect soul, walk serenely on her way, accept the hint of each new experience, search in turn all the objects that solicit her eye, that she may learn the power and charm of her new-born being, which is the kindling of a new dawn in the recesses of space.”
—Ralph Waldo Emerson (18031882)
“A saint about to fall,
The stained flats of heaven hit and razed
To the kissed kite hems of his shawl....”
—Dylan Thomas (19141953)