Experimental and computational studies of several representative IACC appendage geometries were carried out to establish baseline data and verify computational models and methods.

Wind tunnel tests of an unheeled, unswept, constant section, rectangular planform keel mounted on a ground plane included force and moment measurements, and wake surveys at various angles of attack. Test configurations (all at constant draft) included the addition of ballast bulbs and winglets.

Correlations of computational results with experimental wind tunnel data were made. A502/PAN AIR potential flow induced drag predictions proved to be in good agreement with the wind tunnel data. Comparisons are also presented between A598 (A502 + boundary layer), wind tunnel results and empirical predictions. Again good agreement was shown for cases within the limitations of the boundary layer method.

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