Abstract: The wing (10) having a negative dihedron for towing a load comprises a flexible canopy (12) which is defined between two lateral ends (14A, 14B) which are connected to each other, at the front, by a leading edge and, at the rear, by a trailing. The wing (10) includes rear lines (40A, 40B) which are connected to the suspension members (30A, 30B) which are arranged at the lateral ends (14A, 14B) of the wing, and in that the auxiliary maintenance means of the propulsive central region (16) comprise at least a front line which is connected by one end to the propulsive central region adjacent to the leading edge and which is capable of being connected to the load at the other end.

Abstract: The wing (10) having a negative dihedron for towing a load comprises a flexible canopy (12) which is defined between two lateral ends (14A, 14B) which are connected to each other, at the front, by a leading edge (20) and, at the rear, by a trailing edge (22). The canopy (12) has, between those two lateral ends (14A, 14B), a propulsive central region (16) which is bordered at one side and the other by two control regions (18A, 18B). The wing comprises at least a member (30A, 30B) for suspending the load adjacent to each lateral end (14A, 14B) and auxiliary maintenance means (32) which are capable of flattening the propulsive central region (16) adjacent to the leading edge (20) during flight. The trailing edge (22) of the wing is generally concave.

Abstract: A flexible, propulsive wing of the 4-line type especially suitable for kiteboarding, has, at the rear portion of the wing tip a first pulley means attached thereto, the rear line being connected to the rear portion of the wing tip through the first pulley means. A pair of auxiliary re-launch lines are provided at each respective side of the wing, each being fixedly connected at one end thereof to the respective rear line, and at the other end to the trailing edge of the wing.