Charts for Estimating Rotor-blade Flapping Motion of High-performance Helicopters
Author | : Robert J. Tapscott |
Publisher | : |
Total Pages | : 692 |
Release | : 1956 |
Genre | : Charts, diagrams, etc |
ISBN | : |
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Theoretically derived charts showing steady-state and first- and second-harmonic flapping coefficients are presented for helicopter rotors having hinged rectangular blades with a linear twist of 0, -8, and -16 degrees. The charts, showing the rotor flapping coefficients for combinations of inflow ratio and blade pitch angle, are presented for tip-speed ratios ranging from 0.05 to 0.50.