Abstract: A wind power plant construction includes a turbine with at least two blades, a shaft, and blade angle control apparatus. According to the wind power plant construction shown, supports are rigidly connected to the shaft substantially radially thereto, and are coordinated with the blades. At the extreme ends of the supports are flapping pivots, to which the blades are attached. The blade extends from the flapping pivot towards the shaft; that portion of the blade doing so constitutes an arm to which a control means is connected. The blade is weighted so that the centroid line and axis of rotation of the blade lie closer to the leading edge of the blade than does the buoyancy center.