Wind turbine, its use and a vane for use in the turbine

Wind turbine for converting wind into mechanical energy, comprising:

• a support and
• a vane rotatably connected to said support, the vane comprising an elongated body and a wind receptacle which is formed as a lid adapted to hinge with respect to the body such that the receptacle can adopt an open configuration wherein the lid is hinged away from the body, and a closed configuration wherein the lid is hinged towards the body, the lid having an outer surface which is directed away from the wind when the receptacle takes the open configuration, and an opposite inner surface, wherein the inner surface of the lid is provided with at least one profile protruding from the inner surface, and extending in a direction perpendicular to a longitudinal direction of the vane, and wherein the at least one profile diverges toward a site where the lid is hinged to the body;
• and, wherein each profile of the at least one profile is cone-shaped, diverging towards the site where the lid is hinged to the body.