An Analytical and Experimental Study of the Effect of Periodic Blade Twist on the Thrust, Torque, and Flapping Motion of an Autogiro Rotor: Issues 589-591
Charles Horton Zimmerman · Henry Adolph Pearson · John Brooks Wheatley · United States. National Advisory Committee for Aeronautics
ਜਨ 1937 · National Advisory Committee for Aeronautics