Horizontal Axis Wind Turbine Comprising Families of Blades

A wind turbine comprising:

• a rotor for rotating about a horizontal axis of rotation substantially parallel to the direction of the wind, the rotor having a front face facing into the wind and substantially perpendicular to the direction of the wind, and a rear face situated toward a support of the rotor;
• and
• at least two distinct families of blades distributed over the rotor, each family of blades comprises at least two blades having a free end and a blade root end connected to said rotor;
• wherein each family of blades comprises a catching blade guiding the wind toward a force blade having a surface arranged substantially perpendicular to the direction of the wind, the blade root ends of the blades of each family of blades being successively offset on an exterior surface of the rotor along its axis of rotation, and each blade root end is arranged on the surface of the rotor at a predetermined angle (α) formed between the axis of rotation of the rotor and the direction of the blade root end, the blades stand out from the rotor in a longitudinal direction that forms a predetermined angle (β) with the surface of the rotor, and the predetermined angle (α,β) is greater than 0 and less than or equal to 90°.