Abstract: A measurement system and a measurement method for measuring a surface of a rotor blade of a wind power installation as a measured object. The measurement system comprises: a carrier unit having a plurality of measurement sensors arranged in a measurement plane, wherein the measurement system is configured to align the measurement plane with a profile section of the measured object, a movement unit which is configured to move the carrier unit relative to the measured object in a longitudinal direction that is at an angle to the measurement plane, and an advancing unit which is configured to advance at least one measurement sensor in the measurement plane relative to the profile section. The measurement system and the measurement method facilitate an accurate measurement of the surface of the measured object with reduced outlay.

Abstract: A wind turbine rotor blade including a suction side, a pressure side, a blunt trailing edge, and a trailing edge enlargement unit arranged at the blunt trailing edge and has at least two stages. The trailing edge enlargement unit has a first portion and a second portion, where a transition from the blunt trailing edge to the first portion is substantially non-perpendicular and a transition between the first and second portions is also non-perpendicular.

Abstract: A wind turbine rotor blade including a suction side, a pressure side, a blunt trailing edge, and a trailing edge enlargement unit arranged at the blunt trailing edge and has at least two stages. The trailing edge enlargement unit has a first portion and a second portion, where a transition from the blunt trailing edge to the first portion is substantially non-perpendicular and a transition between the first and second portions is also non-perpendicular.