The inboard part of each blade (inboard of the outer articulation hinges) is set at an angle of incidence 4 degrees higher than the outboard part of the blade.
The inboard flapping hinge was 2.67" from rotor center and the outboard flapping hinge at 51.85".
Main Rotor Characteristics
Direction of Rotation:
Doubly articulated blade with I/B and O/B flap hinges
Main Rotor Blade Characteristics
Blade Tip Geometry:
Number of Blades:
Main Rotor Derived Characteristics
Main Rotor Blade Derived Characteristics
Blade area per blade:
Primary Control Device - Brantly B-2B
The blade is tapered with a tip chord of 2.703" and a root chord of 4.187"