articulated rotor


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articulated rotor

articulated rotor
A rotor in which the individual blades are free to flap (i.e., move up and down), drag (i.e., move back and forth in the plane of rotation), and change their pitch angle independently. This is done by mounting the blades on flapping and drag hinges and pitch change bearings. Articulated rotors permit high air speed, have high lift capability, and are suitable for high maneuverability helicopters. They do not suffer from mast bumping problems but are susceptible to ground resonance and are sensitive to the Coriolis force.
References in periodicals archive ?
The aircraft boasts a 6-bladed, fully articulated rotor blade system made up entirely of composite material, in addition to a more rugged landing skid built for heavier take-off and landing weights.
Early helicopters had to be equipped with fully articulated rotor hubs, i.