For other uses, see Kite (disambiguation).
A first-person point of view of someone flying a kite.
The Yokaichi Giant Kite Festival is held every July in Higashiomi, Shiga, Japan.[1]
Various kites being flown
Star-shaped kite above a meadow south of Hockenheim. This sparless, ram-air
inflated kite, has a complex bridle formed of many strings attached to the face of
the wing.
A kite is a tethered heavier-than-air craft with wing surfaces that react against
the air to create lift and drag forces.[2] A kite consists of wings, tethers and
anchors. Kites often have a bridle and tail to guide the face of the kite so the
wind can lift it.[3] Some kite designs do not need a bridle; box kites can have a
single attachment point. A kite may have fixed or moving anchors that can balance
the kite. The name is derived from the kite, the hovering bird of prey.[4]
There are several shapes of kites.
The lift that sustains the kite in flight is generated when air moves around the
kite's surface, producing low pressure above and high pressure below the wings.[5]
The interaction with the wind also generates horizontal drag along the direction of
the wind. The resultant force vector from the lift and drag force components is
opposed by the tension of one or more of the lines or tethers to which the kite is
attached.[6] The anchor point of the kite line may be static or moving (e.g., the
towing of a kite by a running person, boat, free-falling anchors as in paragliders
and fugitive parakites[7][8] or vehicle).[9][10]
The same principles of fluid flow apply in liquids, so kites can be used in
underwater currents.[11][12] Paravanes and otter boards operate underwater on an
analogous principle.
Man-lifting kites were made for reconnaissance, entertainment and during
development of the first practical aircraft, the biplane.
Kites have a long and varied history and many different types are flown
individually and at festivals worldwide. Kites may be flown for recreation, art or
other practical uses. Sport kites can be flown in aerial ballet, sometimes as part
of a competition. Power kites are multi-line steerable kites designed to generate
large forces which can be used to power activities such as kite surfing, kite
landboarding, kite buggying and snow kiting.