Kite Surf Equipment basic equipment is needed:
Power kites: A power kite is available in two major forms: leading edge inflatables and foil kites.
Leading edge inflatables: Leading edge inflatable kites, known also as inflatables, LEI kites or C-kites, are typically made from ripstop polyester with an inflatable plastic bladder that spans the front edge of the kite with separate smaller bladders that are perpendicular to the main bladder to form the chord or foil of the kite. LEIs are the most popular choice among kitesurfers thanks to their quicker and more direct response to the rider's inputs, easy relaunchability once crashed into the water, and resilient nature. If an LEI kite hits the water or ground too hard or is subjected to substantial wave activity, bladders can burst or it can be torn apart.
Early bow kites had some disadvantages compared to classic LEI kites:
They can become inverted and then not fly properly
They can be twitchy and not as stable
Heavier bar pressure makes them more tiring to fly
Lack of "sled boosting" effect when jumping
In 2006, second generation flat LEI kites were developed which combine near total depower and easy, safe relaunch with higher performance, no performance penalties and reduced bar pressure. Called Hybrid or SLE kites (Supported Leading Edge), these kites are suitable for both beginners and experts. In 2009, the performance revolution shows no sign of slowing. Bridled designs feel more like C kites, and five-line hybrids have better depower capability than ever before.
Foil kites: Foil kites are also mostly fabric (ripstop nylon) with air pockets (air cells) to provide it with lift and a fixed bridle to maintain the kite's arc-shape, similar to a paraglider. A depowerable foil kite can cover about the same wind range as two traditional C-shape LEI kite sizes, so the rider can use a smaller kite, giving a wider depower range, although the new LEI "bow" kites have a comparable wide range.
Foil kites have the advantage of not needing to have bladders manually inflated, a process which, with an LEI, can take up to ten minutes. Foil kites are designed with either an open or closed cell configuration.
Open Cell: Open cell foils rely on a constant airflow against the inlet valves to stay inflated, but are generally impossible to relaunch if they hit the water, because they have no means of avoiding deflation, and quickly become soaked.
Closed Cell: Closed cell foils are almost identical to open cell foils except they are equipped with inlet valves to hold air in the chambers, thus keeping the kite inflated (or, at least, making the deflation extremely slow) even once in the water. Water relaunches with closed cell foil kites are simpler; a steady tug on the power lines typically allows them to take off again. An example for a closed cell kite is the Arc Kite.
Kite sizes: Kites come in sizes ranging from 0.7 square meters to 21 square meters, or even larger. In general, the larger the surface area, the more power the kite has. The kite size—wind speed curve tapers off, so going to a larger kite to reach lower wind ranges becomes futile at a wind speed of around eight knots. Kites come in a variety of designs. Some kites are more rectangular in shape; others have more tapered ends; each design determines the kite's flying characteristics.
Smaller kites are used by light riders, or in strong wind conditions; larger kites are used by heavier riders or in light wind conditions. Larger and smaller kiteboards have the same effect: with more available power a given rider can ride a smaller board. In general, however, most kiteboarders only need one board and one to three kites (7-12 sq m in size).