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 lack of reliable information on the propeller character- from the ratio between the vertical velocity and true istics, no attempt was made to calculate thrust directly air speed. The attitude of the autogiro was recorded … Figure 1—Three-quarter view of PCA-2 autogiro from engine speed and air speed. The magnitude of by a pendulum-type inclinometer (reference 1) fixed the thrust was closely approximated by a considera- in the fuselage. Complementary quantities required during the glide tests included air density,…
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