A scissor wing configuration, consisting of two independently sweeping wings was numerically studied. This configuration was also compared with an equivalent fixed wing baseline. Aerodynamic and stability and control characteristics of these geometries were investigated over a wide range of flight Mach numbers. It is demonstrated that in the purely subsonic flight regime, the scissor wing can achieve higher aerodynamic efficiency as the result of slightly higher aspect ratio. In the transonic regime, the lift to drag ratio of the scissor wing is shown to be higher than that of the baseline, for higer values of the lift coefficient. This tends to make the scissor wing more efficient during transonic cruise at high altitudes as well as during air combat at all altitudes. In supersonic flight, where the wings are maintained at maximum sweep angle, the scissor wing is shown to have a decided advantage in terms of reduced wave drag. From the view point of stability and control, the scissor wing is shown to have distinct advantages. It is shown that this geometry can maintain a constant static margin in supersonic as well as subsonic flight, by proper sweep scheduling. Furthermore, it is demonstrated that addition of wing mounted elevons can greatly enhance control authority in pitch and roll.


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    Title :

    An aerodynamic tradeoff study of the scissor wing configuration


    Contributors:

    Publication date :

    1990-05-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Aerodynamic Tradeoff Study of the Scissor Wing Configuration

    B. P. Selberg / K. Rokhsaz / C. S. Housh | NTIS | 1990


    Some Aerodynamic Characteristiscs of the Scissor Wing Configuration

    Selberg, Bruce P. / Housh, Clinton S. / Rokhsaz, Kamran | SAE Technical Papers | 1989


    Some aerodynamic characteristics of the scissor wing configuration

    Selberg, B.P. / Rokhsaz, K. / Housh, C.S. | Tema Archive | 1989


    Aerodynamic characteristics of scissor-wing geometries

    Selberg, Bruce P. / Rokhsaz, Kamran / Housh, Clinton S. | NTRS | 1991


    Aerodynamic characteristics of scissor-wing geometries

    SELBERG, BRUCE P. / ROKHSAZ, KAMRAN / HOUSH, CLINTON S. | AIAA | 1991