The patent relates to a landing aid whereby a ship has a helicopter landing area and a horizontal plane indicating member with a substantially flat upper surface mounted for angular movement about axes parallel and transverse to the length of the ship. The indicator member is mounted in such a position on the ship and the flat upper surface is of such a size as to be clearly visible to the pilot of a helicopter when landing on the area. Means are provided for maintaining the indicating member in a horizontal attitude.


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    Title :

    Stabilized Horizon Plane System


    Contributors:

    Publication date :

    1971


    Size :

    4 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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