FIELD: machine building.
SUBSTANCE: invention relates to rotor blade (1) of wind power plant with rotor blade butt (4) for connection of rotor blade (1) to rotor hub and rotor blade top located on the opposite to rotor blade butt (4) side, as well as wind power plant equipped with such rotor blades. At that, relative thickness (2) of profile, which is defined as ratio of profile thickness (2) to profile chord (3), has local maximum in mid area (6) between rotor blade butt and rotor blade top.
EFFECT: invention is aimed at creation of wind power plant blades with lower weight and higher rigidity.
9 cl, 7 dwg
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