Analysis of Ground Effect on the Lifting Airscrew
Description:
"A study is presented of ground effect as applied to the lifting airscrew of the type used in modern gyroplanes and helicopters. The mathematical analysis of the problem has been verified by tests made of three rotor models in the presence of a large circular "ground plane." The results of the study are presented in the form of convenient charts" (p. 1).
Date:
December 1941
Creator:
Knight, Montgomery & Hefner, Ralph A.
Item Type:
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Report
Partner:
UNT Libraries Government Documents Department