Calculated dynamic characteristics of a representative soft-inplane hingeless rotor helicopter are presented. The flight dynamics as a function of speed and gross weight are given. The requirements for accurate analytical modelling of this helicopter are established. The influence of the horizontal tail size, the rotor precone, the blade sweep, and the blade center of gravity/aerodynamic center offset on the calculated flight dynamics and aeroelastic stability are examined. The calculations show no evidence of an air resonance stability problem with this aircraft.


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    Title :

    Calculated Dynamic Characteristics of a Soft-Inplane Hingeless Rotor Helicopter


    Contributors:
    W. Johnson (author)

    Publication date :

    1977


    Size :

    29 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English