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Crosswind kite power is power derived from airborne wind-energy conversion systems (AWECS, also AWES) or crosswind kite power systems (CWKPS). The kite system is characterized by energy-harvesting parts flying transversely to the direction of the ambient wind, i.e., to crosswind mode; sometimes the entire wing set and tether set are flown in crosswind mode.
The Kitepower system consists of three major components: [10] [11] [12] a soft kite, [13] a load-bearing tether and a ground-based electric generator. Another important component is the so-called kite control unit and together with the according control software for remotely steering the kite. [14]
The tug kite line is very elastic; when tensed, the line is long; during use for launch, the kite line shortens. Controlling the kite's wing attitudes is up to the pilot who frequently is hung from a short kite line while controlling a triangle control frame or other airframe part or even aerodynamic surface controls. Professional instruction ...
A man flying a kite on the beach, a good location for flying as winds travelling across the sea contain few up or down draughts which cause kites to fly erratically. There are safety issues involved in kite-flying. Kite lines can strike and tangle on electrical power lines, causing power blackouts and running the risk of electrocuting the kite ...
Toilet-tissue winders are able to change over at running speed, while paper and board winders need to stop the winding process in order to cut the sheet and glue the paper on to a new wind-up core. Top-line winders introduce the paper core through a maintenance pit downstairs, with web interruption time as low as 15 seconds.
The SkySails propulsion system consists of a large foil kite, an electronic control system for the kite, and an automatic system to retract the kite. The kite, while 1–2 orders of magnitude larger, bears similarities to the arc kites used in kitesurfing. However, the kite is an inflatable rather than a ram-air kite.
In the 1820s British inventor George Pocock developed man-lifting kites, using his own children in his experimentation. [8]In the early 1890s, Captain B. F. S. Baden-Powell, soon to become president of the Aeronautical Society of Great Britain, developed his "Levitor" kite, a hexagonal-shaped kite intended to be used by the army in order to lift a man for aerial observation or for lifting ...
The lift generated by the kite and other flying characteristics are affected by the kite's angle of attack, which is set by the bridle; the arrangement of lines which terminate the main kite lines and attach to a number of points across the kite's surface. Power kites having 4 or 5 lines come in two variants, fixed bridle and depowerable.