Collected data obtained from tests of models and airplanes are presented and analyzed. Results show that a well designed gun port should have little or no effect on either the drag or maximum lift of an airplane. Gun ports having a small height, with air flow vents located on or slightly below the chord line, cause the smallest drag increments. Guns mounted below the wing cause high drags. Gun extensions of at least one-quarter chord have less adverse affect on maximum lift than the shorter extensions. Fairing cannon into the wing and providing air flow substantially decrease drag.


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    Title :

    Summary of Data Relating to the Effects of Wing Machine Gun and Cannon Installations on the Aerodynamic Characteristics of Airplanes


    Contributors:
    F. E. Dole (author) / J. H. Quinn (author)

    Publication date :

    1944


    Size :

    72 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English