Rotorblad til et vindkraftanlæg

摘要

Each rotor blade (1) has one or more drainage apertures (3) in one edge. There is a net, gauze or felt (2) which may soak up any water present in the hollow space adjacent to each drainage aperture. There is a handhold (4) in the end of the blade near the absorption body. Each of the drainage openings may have a diameter of 5 mm.