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The NASA Langley 16-Foot Transonic Tunnel: Historical Overview, Facility Description, Calibration, Flow Characteristics, and Test CapabilitiesThe Langley 16-Foot Transonic Tunnel is a closed-circuit single-return atmospheric wind tunnel that has a slotted octagonal test section with continuous air exchange. The wind tunnel speed can be varied continuously over a Mach number range from 0.1 to 1.3. Test-section plenum suction is used for speeds above a Mach number of 1.05. Over a period of some 40 years, the wind tunnel has undergone many modifications. During the modifications completed in 1990, a new model support system that increased blockage, new fan blades, a catcher screen for the first set of turning vanes, and process controllers for tunnel speed, model attitude, and jet flow for powered models were installed. This report presents a complete description of the Langley 16-Foot Transonic Tunnel and auxiliary equipment, the calibration procedures, and the results of the 1977 and the 1990 wind tunnel calibration with test section air removal. Comparisons with previous calibrations showed that the modifications made to the wind tunnel had little or no effect on the aerodynamic characteristics of the tunnel. Information required for planning experimental investigations and the use of test hardware and model support systems is also provided.
Document ID
Acquisition Source
Langley Research Center
Document Type
Technical Publication (TP)
Capone, Francis J.
(NASA Langley Research Center Hampton, VA, United States)
Bangert, Linda S.
(NASA Langley Research Center Hampton, VA, United States)
Asbury, Scott C.
(NASA Langley Research Center Hampton, VA, United States)
Mills, Charles T. L.
(NASA Langley Research Center Hampton, VA, United States)
Bare, E. Ann
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1995
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
NAS 1.60:3521
Accession Number
Funding Number(s)
PROJECT: RTOP 505-59-30-04
Distribution Limits
Work of the US Gov. Public Use Permitted.
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