Measurements of Section Characteristics of a 45 Degree Swept Wing Spanning a Rectangular Low-speed Wind Tunnel as Affected by the Tunnel Walls

Two constant-chord wings that completely spanned a closed wind tunnel were investigated by pressure-distribution and wake measurements, and tuft observations. One wing was unswept and the other wing swept 45 degrees. The experimental results indicate: (1) that the change in pressure distribution and in lift characteristics over the central half of the swept wing compared to that of the unswept wing was in accordance with simple sweep theory and (2) that the flow over a swept wing of infinite aspect ratio may be approxmated by this method of mounting.