A method of adjusting a wing of a traction kite during flight, the kite including a control bar connected to the wing, the method including the step of: operating an activator located on the control bar to activate an actuator configured to adjust a control line connected to the wing wherein the actuator includes an hydraulic circuit.
B65H 75/40 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
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