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The aerodynamic properties of a forward-swept wing were tested at low Reynolds numbers. The investigation was performed in a low-speed wind tunnel using a reflection plane model. Tunnel balance, model pressure taps, and flow visualization results were utilized to characterize the wing behavior over a range of Reynolds numbers from 0.25 × 106 - 0.75 × 106. In addition, the experimental data is compared to results obtained using a recently developed computer program known as WING3D. This modified Non-Planar Vortex Lattice Method program can calculate total wing lift and surface pressure distributions. The forward-swept wing has good aerodynamic qualities; in addition, the flow, on the outboard sections of the wing, remains attached beyond stall. The comparison of WING3D and experimental surface pressure distributions is good.

A high lift, low Reynolds number airfoil section has been designed, built, and tested for a Short Take-Off and Landing (STOL) aircraft configuration. The wing incorporating this airfoil section was augmented with a full span non-adjustable external flap, and a partial span adjustable spoiler. Optimum configuration for the flap and spoiler were determined experimentally at Wichita State University's low speed wind tunnel. Flight test of this configuration indicated excellent lift carrying capability.