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Recent rotorcraft aeroelastic testing in the Langley Transonic Dynamics TunnelWind-tunnel testing of a properly scaled aeroelastic model helicopter rotor is considered a necessary phase in the design and development of new rotor systems. For this reason, extensive testing of aeroelastically scaled model rotors is done in the Transonic Dynamics Tunnel (TDT) located at the Langley Research Center. A unique capability of this facility, which enables proper dynamic scaling, is the use of diflourodichloromethane, or Refrigerant-12 (R-12) as a test medium. The paper presents a description of the TDT and a discussion of the benefits of using R-12 as a test medium. A description of the system used to conduct model tests is provided and examples of recent rotor tests are cited to illustrate the types of aeroelastic model rotor tests conducted in the TDT.
Document ID
19920031753
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yeager, William T., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Mirick, Paul H.
(NASA Langley Research Center Hampton, VA, United States)
Wilbur, Matthew L.
(NASA Langley Research Center Hampton, VA, United States)
Singleton, Jeffrey D.
(NASA Langley Research Center Hampton, VA, United States)
Wilkie, W. K.
(NASA Langley Research Center; U.S. Army, Aerostructures Directorate, Hampton VA, United States)
Hamouda, M.-N. H.
(NASA Langley Research Center; Lockheed Engineering and Sciences Co. Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Research And Support Facilities (Air)
Meeting Information
Meeting: AHS Annual Forum
Location: Phoenix, AZ
Country: United States
Start Date: May 6, 1991
End Date: May 8, 1991
Accession Number
92A14377
Distribution Limits
Public
Copyright
Other

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