An elementary analysis has been made of generic wing-body configurations with variable volume allotment in wing and body, for constant total useful volume, including the all-wing configuration. These aircraft were compared on the basis of the Lift-to-Drag (L/D) ratio, for specified flight conditions. In addition the parameter ML/D for constant corrected thrust has been optimized, resulting in certain combinations of altitude and speed for maximum specific range (if corrected TSFC = constant). Finally, the effect of volume allotment on L/D for given engine size was studied. It has been found that in many cases optimum volume allotments indicate that wing-body combinations are to be favored. Only in the case of relatively low Mach numbers and high-altitude flight the flying wing outperforms conventional aircraft, but it will generally require larger engines.


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    Title :

    Aerodynamic Performance of Wing-Body Configurations and the Flying Wing


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    General, Corporate & Regional Aviation Meeting & Exposition ; 1991



    Publication date :

    1991-04-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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