A kite system for the extraction of energy from the wind includes a kite connected to a base unit using a tether. The kite system comprises an anhedral wing 100 having wing tips (103 fig 3) and and may comprise a rigid wing, a flexible wing (eg parafoil) or a hybrid wing. A frame 300 is coupled to the wing by plural bridle lines 201. A pitch actuator 501 is connected to the frame and is connected to a tether attachment mechanism 400 for attaching the kite frame to a tether 402 at a tether attachment position. The tether is connected to a base unit where it is wound on a drum. The pitch actuator is configured to move the tether attachment mechanism relative to the frame in the fore and aft direction with respect to a forward flying direction of the kite system to adjust the pitch of the kite. The kite is intended to extract energy during a power stroke when the kite is generating lift and the tether is in tension causing rotation of the drum. In a retraction stage the drum is reversed to wind in the tether.


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    Title :

    KITE SYSTEMS


    Additional title:

    DRACHENSYSTEME
    SYSTÈMES DE CERF-VOLANT


    Contributors:

    Publication date :

    2020-01-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / F03D Windkraftmaschinen , WIND MOTORS



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