alpha hinge

Definitions

1. 1

   On rotorcraft, a hinge perpendicular to the plane of rotor rotation about which the…

   On rotorcraft, a hinge perpendicular to the plane of rotor rotation about which the blades trail or lag.

   • Similarly, as a blade with an alpha hinge lags through an angle §, ...
   • When rotor goes to autorotation, an inclined alpha hinge provides automatic change of blade pitch to three degrees as the shaft stops rotating.
   • When flap and lag hinge inclination was introduced on the autogyro rotors, the inboard (flap) hinge was designated the “delta hinge,” and the outboard (lag) hinge designated the “alpha hinge.”

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