Observations in Flight of the Region of Stalled Flow over the Blades of an Autogiro Rotor (1939)
NASA Technical Reports Server (NTRS) · leaf 20
N.A.C.A. Technical Note No. 741 … Figure 8.- Comparison of experimental velocity-reversal values with theoretical boundaries of the reversed-velocity region for three tip-speed ratios. The YG-1B autogiro rotor.
NASA Technical Reports Server (NTRS)
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