半楕円弧正面形GEWの最小誘導抵抗

抄録

The minimum induced drag is discussed for the hemi-elliptic front view wing. Two limiting cases, when the gap angle from the ground is nearly 0 and π/2, are treated by the method of the series expansion. The effect of the height ratio in the front view on the span efficiency factor is expressed as the difference from that of the hemi-circular wing. It is shown that the span efficiency factor of the wing with height ratio λ is equivalent to that of the wing with 1/λ.