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Rotorcraft research testing in the National Full-Scale Aerodynamics Complex at NASA Ames Research CenterThe unique capabilities of the National Full-Scale Aerodynamics Complex (NFAC) for testing rotorcraft systems are described. The test facilities include the 40- by 80-Foot Wind Tunnel, the 80- by 120-Foot Wind Tunnel, and the Outdoor Aerodynamic Research Facility. The Ames 7- by 10-Foot Subsonic Wind Tunnel is also used in support of the rotor research programs conducted in the NFAC. Detailed descriptions of each of the facilities, with an emphasis on helicopter rotor test capability, are presented. The special purpose rotor test equipment used in conducting helicopter research is reviewed. Test rigs to operate full-scale helicopter main rotors, helicopter tail rotors, and tilting prop-rotors are available, as well as full-scale and small-scale rotor systems for use in various research programs. The test procedures used in conducting rotor experiments are discussed together with representative data obtained from previous test programs. Specific examples are given for rotor performance, loads, acoustics, system interactions, dynamic and aeroelastic stability, and advanced technology and prototype demonstration models.
Document ID
19850019542
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Warmbrodt, W. (NASA Ames Research Center Moffett Field, CA, United States)
Smith, C. A. (NASA Ames Research Center Moffett Field, CA, United States)
Johnson, W. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 5, 2013
Publication Date
May 1, 1985
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
NAS 1.15:86687
NASA-TM-86687
REPT-85140
Accession Number
85N27854
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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