The invention relates to an optical plumbing device having particular utility as an aid in establishing from an aerial location, the position of a mark or target on the ground corresponding to a control point in a long range survey operation. A helicopter which may be used in the survey operation, is maneuvered to hover directly over the ground target whereby this craft is enabled to function as a survey station. It then serves as a target for distant sighting instruments, and as a platform on which are located instruments to measure the distance from the helicopter to the ground mark, and to at least two remote ground control stations whose geodetic positions are known.


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    Titel :

    Optical Plumbing Device for Establishing from an Aerial Location the Position of a Mark on the Ground


    Beteiligte:
    J. L. Buckmaster (Autor:in) / H. B. Loving (Autor:in)

    Erscheinungsdatum :

    1962


    Format / Umfang :

    9 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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