Flow induced by a rotor in power-on vertical descent

Walter Castles, Jr.
naca-tn-4330
Jul 1958


Approximate equations are derived for the induced power required and blade loading of a lifting rotor operating in the power-on vertical-descent range. The approximate relations, which are based upon certain assumptions as to the nature of the flow pattern, yield, for the induced power variation, results which are in general agreement with the available experimental data.

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