Patent ID: 8152465

Claim:
A rotor blade comprising: an inner rotor blade root area; a rotor blade main area disposed adjacent to the inner rotor blade root area along a length of the rotor blade and having an aerodynamically effective rotor blade profile, the profile including a leading edge area and a rear edge area; and a rotor blade tip disposed adjacent to the rotor blade main area along the length of the rotor blade, wherein the rotor blade tip is configured to be deformable relative to the rotor blade main area and is disposed furthest to the outside of the aerodynamically effective rotor blade main area along the rotor blade and has a rotor blade tip profile having a tip profile thickness D spitze and a nose area, wherein the rotor blade tip profile is thinner than the rotor blade profile, the rotor blade tip configured to be actively flexurally elastic and reversibly deformable and being operatively connected to an actuator device wherein the actuator device is configured to initiate at least one of a torsion of the rotor blade tip, a curving of the rotor blade tip profile, and a formation of an S-twist of the rotor blade tip profile.