Lift and Drag Characteristics and Gliding Performance of an Autogiro as Determined in Flight (1933)
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REPORT NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS ACCURACY against horizontal velocity, and lines of constant The effect of accidental errors is reflected in the dis- flight-path angle have been shown. The polar distance persion of experimental points on the curves. It will from the origin,… … Indicated air speed, ft/sec. culations based on the usual wing theory in- Figure 6.—Flight-path angle and vertical velocity as functions of air speed for dicate that the magnitude of the induced velocity at PCA-2 autogiro gliding with stopped propeller the suspended instrument is approximately…
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