Airstair systems and associated methods are disclosed. In one embodiment, the airstair comprises a deployable upper step, a primary deployment device and a secondary deployment device. The upper step is movable between a stowed configuration when a door of the aircraft is closed and a deployed configuration when the door is open. The primary deployment device resiliently biases the upper step toward the deployed configuration. The secondary deployment device is movable in coordination with a movement of the door and configured to drive the deployable upper step toward the deployed configuration during opening of the door and during a failure of the primary deployment device.


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    Title :

    AIRSTAIR SYSTEM WITH DEPLOYABLE UPPER STEP


    Additional title:

    SYSTEME D`ESCALIER INCORPORE A MARCHE SUPERIEURE DEPLOYABLE


    Contributors:

    Publication date :

    2020-06-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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