Two variations of the helicopter bearingless main rotor hub concept are proposed as bases for further development in the preliminary design phase of the Integrated Technology Rotor/Flight Research Rotor (ITR/FRR) program. This selection was the result of an evaluation of three bearingless hub concepts and two articulated hub concepts with elastomeric bearings. The characteristics of each concept were evaluated by means of simplified methodology. These characteristics included the assessment of stability, vulnerability, weight, drag, cost, stiffness, fatigue life, maintainability, and reliability.


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    Title :

    Integrated technology rotor/flight research rotor hub concept definition


    Contributors:

    Publication date :

    1983-03-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English