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Low-speed Wind-Tunnel Study of Reaction Control-jet Effectiveness for Hover and Transition of a STOVL Fighter ConceptA brief wind-tunnel study was conducted in the Langley 12-Foot Low-Speed Tunnel to determine reaction control-jet effectiveness and some associated aerodynamic characteristics of a 15 percent scale model of the General Dynamics E-7A STOVL fighter/attack aircraft concept applicable to hover and transition flight. Tests were made with the model at various attitude angles in the tunnel test section and at various tunnel airspeeds for a range of control-jet nozzle pressure ratios. Eight reaction control-jets were tested individually. Four jets were at the design baseline locations providing roll, pitch, and yaw control. Comparisons of measured data with values calculated using empirical methods were made where possible.
Document ID
19900002435
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Riley, Donald R. (NASA Langley Research Center Hampton, VA, United States)
Shah, Gautam H. (NASA Langley Research Center Hampton, VA, United States)
Kuhn, Richard E. (Kuhn, Richard E., San Diego CA , United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1989
Subject Category
Aircraft Stability And Control
Report/Patent Number
L-16616
NAS 1.15:4147
NASA-TM-4147
Accession Number
90N11751
Funding Number(s)
PROJECT: RTOP 505-61-71-07
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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