Frank A. Duwaldt

EXPERIMENTAL AND THEORETICAL INVESTIGATION OF THE FLUTTER CHARACTERISTICS OF A MODEL HELICOPTER ROTOR BLADE IN FORWARD FLIGHT

Charles A. Gates, Frank A. Duwaldt, 1962 .

A METHOD FOR COMPUTING ROTARY WING AIRLOAD DISTRIBUTION IN FORWARD FLIGHT

Frank A. Duwaldt, Raymond A. Piziali, 1962 .

Comparison of Theoretical and Experimental Flutter Characteristics for a Model Rotor in Translational Flight

Charles A. Gates, Frank A. Duwaldt, Raymond A. Piziali, 1963 .

Investigation of Helicopter Blade Flutter and Load Amplification Problems

Charles A. Gates, Frank A. Duwaldt, Hamilton Daughaday, 1957 .

The Effect of Blade Root Properties on the Natural Mode Shapes, Bending Moments, and Shears of a Model Helicopter Rotor Blade

Frank A. Duwaldt, H. Daughaday, 1956 .

Computed Induced Velocity, Induced Drag, and Angle of Attack Distributions for a Two-Bladed Rotor

Frank A. Duwaldt, Raymond A. Piziali, 1963 .