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Aerodynamic Characteristics of a Portion of the Horizontal Tail from a Douglas C-74 Airplane with Fabric-Covered ElevatorsA Douglas C-74 airplane, during a test dive at about 0.525 Mach number, experienced uncontrollable longitudinal oscillations sufficient to cause shedding of the outer wing panels and the subsequent crash of the airplane. Tests of a section of the horizontal tail plane from a C-74 airplane were conducted in the Ames 16-foot high-speed wind tunnel to investigate the possibility of the tail as a contributing factor to the accident. The results of the investigations of fabric-covered elevators in various conditions of surface deformation are presented in this report.
Document ID
20030063918
Acquisition Source
Langley Research Center
Document Type
Other - NACA Research Memorandum
Authors
Perone, Angelo (National Advisory Committee for Aeronautics. Ames Aeronautical Lab. Moffett Field, CA, United States)
Berthold, Cecil L. (National Advisory Committee for Aeronautics. Ames Aeronautical Lab. Moffett Field, CA, United States)
Date Acquired
September 7, 2013
Publication Date
May 6, 1947
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
NACA-RM-A7D28
Report Number: NACA-RM-A7D28
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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