Wing for use as sail, has cross section like aircraft airfoil, and flowing medium positioning rotatable part i.e. blade, of wing such that medium strikes on straight or lower side and side averting air flow comprising curvature

摘要

The wing has a cross section like an aircraft airfoil, and surfaces connected with a flexible surface guided by a roller. A flowing medium positions a rotatable part i.e. blade (2), of the wing such that the medium strikes on a straight or lower side curved inwardly and a side averting an air flow comprising a curvature inwardly. The air flow rotates the wing such that the side averting the air flow is curved strongly. A pivot point (1) of the wing, a stop i.e. mast (3), and a deflecting roller (5) are arranged in a row.