Blades of wind turbines and their manufacturing METHOD

- The object of the invention is a wind turbine blade comprising at least two sections (1a, 1b, 1c) connected by at least one hinge (2, 3) adapted to fold one of said sections over the other for transport of the blade and to unfold the sections in alignment. The blade of the invention advantageously comprises complementary means (4, 5, 6, 7) for securing the sections, sections unfolded in alignment.