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

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Main Author: Williams, James L.
Related Names: United States. National Advisory Committee for Aeronautics.
Language(s): English
Published: Washington, D.C. : National Advisory Committee for Aeronautics, 1954.
Subjects: Wind tunnel testing.
Stability of helicopters.
Rotors (Helicopters)
Helicopters > Helicopters / Testing.
Wind tunnel testing.
Helicopters > Helicopters / Testing.
Rotors (Helicopters)
Stability of helicopters.
Summary: A low-speed investigation was made in the Langley stability tunnel to determine and improve, if possible, the directional stability characteristics of two tandem helicopter fuselages, one representing a helicopter with overlapping rotors (overlap-type fuselage) and the other a helicopter with nonoverlapping proptes (nonoverlap-type fuselage).
Note: Includes an errata sheet.
NACA TN No. 3201.
"May 1954."
Physical Description: 44, [1] p. : ill. ; 27 cm.
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