Lift Correction for Finite Chord: A Method of Close Approximation that is not Laborious and is Applicable in General to Wings without Sweep

IT has been noted by Falkner and others that the ordinary aspect‐ratio corrections based on lifting‐line theory are not as accurate as had always been assumed even for normal aspect ratios of the order of 6. Lifting‐surface theory involves heavy calculation, and the present work is intended to give at least an indication of the magnitude of the finite‐chord correction on a fairly simple basis.