The investigation utilized one main gear wheel, brake, and tire assembly of a McDonnell Douglas DC-9 series 10 airplane. The landing-gear strut was replaced by a dynamometer. During maximum braking, average braking behavior indexes based upon brake pressure, brake torque, and drag-force friction coefficient developed by the antiskid system were generally higher on dry surfaces than on wet surfaces. The three braking behavior indexes gave similar results but should not be used interchangeably as a measure of the braking of this antiskid sytem. During the transition from a dry to a flooded surface under heavy braking, the wheel entered into a deep skid but the antiskid system reacted quickly by reducing brake pressure and performed normally during the remainder of the run on the flooded surface. The brake-pressure recovery following transition from a flooded to a dry surface was shown to be a function of the antiskid modulating orifice.


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    Titel :

    Behavior of aircraft antiskid braking systems on dry and wet runway surfaces: Hydromechanically controlled system


    Beteiligte:
    Tanner, J. A. (Autor:in) / Stubbs, S. M. (Autor:in) / Smith, E. G. (Autor:in)

    Erscheinungsdatum :

    1981-08-01


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch