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Low-speed longitudinal and lateral-directional aerodynamic characteristics of the X-31 configurationAn experimental investigation of a 19 pct. scale model of the X-31 configuration was completed in the Langley 14 x 22 Foot Subsonic Tunnel. This study was performed to determine the static low speed aerodynamic characteristics of the basic configuration over a large range of angle of attack and sideslip and to study the effects of strakes, leading-edge extensions (wing-body strakes), nose booms, speed-brake deployment, and inlet configurations. The ultimate purpose was to optimize the configuration for high angle of attack and maneuvering-flight conditions. The model was tested at angles of attack from -5 to 67 deg and at sideslip angles from -16 to 16 deg for speeds up to 190 knots (dynamic pressure of 120 psf).
Document ID
Document Type
Technical Memorandum (TM)
Banks, Daniel W.
(NASA Langley Research Center Hampton, VA, United States)
Gatlin, Gregory M.
(NASA Langley Research Center Hampton, VA, United States)
Paulson, John W., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1992
Subject Category
Report/Patent Number
NAS 1.15:4351
Funding Number(s)
PROJECT: RTOP 505-68-30-04
Distribution Limits
Work of the US Gov. Public Use Permitted.

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NameType 19930002434.pdf STI