Presented in this report are the results of high-speed wind-tunnel tests of a 0.3-scale model of the P-47D airplane. Included are the aerodynamic characteristics of the model, pressure distributions on the wing and horizontal tail, elevator hinge moments, and tuft photographs showing the flow over the wing and horizontal tail. The results indicate that, at level-flight lift coefficients, the P-47D airplane will not exhibit a diving tendency below a Mach number of 0.78 at an altitude of 20,000 feet or below a Mach number of 0.72 at an altitude of 40,000 feet. The Mach number at which the lift, drag, and pitching-moment coefficients diverged rapidly from the low speed values is about C.15 higher than the critical Mach number. This is an unusually large margin.


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    Title :

    High-Speed Wind-Tunnel Tests of a 0.3-Scale Model of the P-47D Airplane


    Contributors:

    Publication date :

    1945-05-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :




    High-speed wind-tunnel tests of twin-fuselage pursuit airplane

    Anderson, J.L. / Tkac, V.B. | Engineering Index Backfile | 1946



    High-speed wind-tunnel tests of a twin-fuselage pursuit airplane

    Anderson, Joseph L. / Tkac, Victor B. | TIBKAT | 1946