Directional stability characteristics of two types of tandem helicopter fuselage models /
James L. Williams.

APA Citation

Williams, J. L., United States. National Advisory Committee for Aeronautics. (1954). Directional stability characteristics of two types of tandem helicopter fuselage models. Washington, D.C.: National Advisory Committee for Aeronautics.

MLA Citation

Williams, James L, and United States. National Advisory Committee for Aeronautics. Directional Stability Characteristics of Two Types of Tandem Helicopter Fuselage Models. Washington, D.C.: National Advisory Committee for Aeronautics, 1954.