A special protractor was designed and built with a view towards supplying a simple, inexpensive, practical, portable instrument for making measurements to detect propeller warpage under practically all conditions, without the use of auxiliary equipment, and without having to remove the propeller from the airplane. A detailed description is given of the protractor. Techniques for measuring are described. Directions are given on how to use the protractor to set detachable blade-type propellers on an airplane.


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    Title :

    Special Propeller Protractor


    Contributors:
    Heim, A M (author)

    Publication date :

    1928-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English



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