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Langley 8-Ft. HTT Test 139 Gas AnalysesThis report presents results of gas analyses of Mach 7 Tunnel Calibration Test 139 conducted in the Langley 8-Ft. HTT from May through June of 1998. These tests in support of hypersonic airbreathing propulsion provided a current calibration at the primary test condition for the National Aero-Space Plane Concept Demonstration Engine and a new calibration for the two test conditions that will be used for engine testing in support of the Hyper-X program. Samples taken from three probes on the Flow Survey Apparatus were analyzed using mass spectrometers. Although this wind tunnel doesn't produce a true simulation of flight conditions, test results show that a uniform oxygen concentration of 21 percent was achieved.
Document ID
Document Type
Technical Memorandum (TM)
Sprinkle, Danny R.
(NASA Langley Research Center Hampton, VA United States)
Davis, Patricia P.
(NASA Langley Research Center Hampton, VA United States)
Date Acquired
September 7, 2013
Publication Date
October 1, 1999
Subject Category
Chemistry And Materials (General)
Report/Patent Number
NAS 1.15:209712
Funding Number(s)
PROJECT: RTOP 522-51-31-20
Distribution Limits
Work of the US Gov. Public Use Permitted.

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