Patent ID: 11905009
Assignee: JOBY AERO, INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A rotor for a tilt-rotor aircraft, the rotor defining a disc plane, the rotor comprising:
a plurality of airfoil blades, each of the plurality of airfoil blades comprising:
a first angle of attack (AoA) range, said first AoA range having a minimum angle of −5 deg, said first AoA range having a maximum angle of 5 deg;
a second AoA range, said second AoA range from 8 deg to 10 deg; and
a raised feature on an upper side of said airfoil blade, said raised feature comprising a convex portion of the upper side, a concave portion of the upper side trailing the convex portion, thereby defining a flow separation point, wherein the mean camber line of a trailing edge of said airfoil blade slopes downward;

a rotor tilt mechanism, the rotor tilt mechanism configured to transform the rotor between:
a forward configuration, wherein each of the plurality of airfoil blades operates in the first AoA range and the disc plane is parallel to a pitch-yaw plane of the tilt-rotor aircraft; and
a hover configuration, wherein each of the plurality airfoil blades operates in the second AoA range and the disc plane intersects the pitch-yaw plane.