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Aerodynamic characteristics of a large-scale lift-engine fighter model with external swiveling lift-enginesThe aerodynamic characteristics of a six-engine (four lift, two lift-cruise) lift-engine model obtained in the Ames 40- by 80-foot wind tunnel are presented. The model was an approximate one-half scale representation of a lift-engine VTOL fighter aircraft with a variable-sweep wing. The four lift-engines were housed in the aft fuselage with the inlets located above the wing. Longitudinal and lateral-directional force and moment data are presented for a range of exhaust gas momentum ratios (thrust coefficients). Wind tunnel forward speed was varied from 0 to 140 knots corresponding to a maximum Reynolds number of 6.7 million. The data are presented without analysis.
Document ID
19720020362
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Barrack, J. P.
(NASA Ames Research Center Moffett Field, CA, United States)
Kirk, J. V.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 2, 2013
Publication Date
July 1, 1972
Subject Category
Aircraft
Report/Patent Number
NASA-TM-X-62167
Accession Number
72N28012
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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