The present invention relates to a wheel of the stator (110) of a turbomachine (1), comprising a plurality of blades aerodynamic (1161 and 1162, 1163, 1143,.. 116i, 12a, 12b) spaced apart circumferentially and intended to be subjected to a flow of air coming from the upstream end of the wheel of the stator. In characteristic manner, the said aerodynamic vanes are of the blades to variable setting angle comprising an upstream arm is fixed (116a) and a downstream flap (116b) is adjustable by pivoting at its upstream end, about an axis of rotation parallel to the longitudinal direction of the aerodynamic airfoil (1161 and 1162, 1163, 1143,.. 116i), and in that said downstream flap (116b) forms with said arm (116a) a locking angle ai different between the aerodynamic vanes of the wheel of the stator.
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