A method for rapidly evaluating the structural and aerodynamic characteristics of joined-wing aircraft was developed and used to study the fundamental advantages attributed to this concept. The technique involves a rapid turnaround aerodynamic analysis method for computing minimum trimmed drag combined with a simple structural optimization. A variety of joined-wing designs are compared on the basis of trimmed drag, structural weight, and, finally, trimmed drag with fixed structural weight. The range of joined-wing design parameters resulting in best cruise performance is identified. Structural weight savings and net drag reductions are predicted for certain joined-wing configurations compared with conventional cantilever-wing configurations.


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    Title :

    Aerodynamic and structural studies of joined-wing aircraft


    Contributors:
    Kroo, Ilan (author) / Smith, Stephen (author) / Gallman, John (author)

    Published in:

    Publication date :

    1991-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Aerodynamic and structural studies of joined-wing aircraft

    KROO, ILAN / SMITH, STEPHEN / GALLMAN, JOHN | AIAA | 1991



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