Scheme for taking sights by bringing image of heavenly body to spar towed by ship.


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    Title :

    An improved towing spar which can be used as a navigational instrument


    Additional title:

    U. S. Naval Inst. Proc


    Contributors:
    Heim, S.F. (author)


    Publication date :

    1920


    Size :

    3 pages


    Remarks:

    2 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


    Navigational systems and instrument aids

    Adams, D.E. / Uttley, A.M. | Engineering Index Backfile | 1950


    Improved navigational aid

    Engineering Index Backfile | 1950


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