A METHOD OF CORRELATING THE GROUND EFFECTS ON THE LONGITUDINAL CHARACTERISTICS OF SLENDER WINGS

摘要

This Report describes a method of calculating the ground effect on the longitudinal characteristics of a slender wing when the span/height ratio is small. The results obtained are compared with those obtained from Gersten's method, valid when the span/height ratio is large. From these two sets of results is derived a method of correlating the measured ground effects on the normal force and pitching moment on various slender wings, and hence a means of estimating the ground effect on any slender wing at any height above the ground.