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Effects of ground proximity on the aerodynamic characteristics of a six-jet V/STOL configuration with four swing-out lift jetsA wind-tunnel investigation has been made of the effects of ground proximity on the longitudinal and lateral-directional aerodynamic characteristics and jet-interference effects of a model of a jet V/STOL variable-sweep fighter airplane that employs four direct-lift engines which swing out from the fuselage ahead of the wing and two lift-cruise engines located in the rear part of the fuselage. Data were obtained through a range of angles of attack and sideslip at simulated speeds from hover through transition at various heights of the model above a moving-belt ground plane. Power-off data and power-on data at several power conditions are presented. The data are presented without analysis or discussion.
Document ID
19720010358
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Carter, A. W.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 2, 2013
Publication Date
May 1, 1971
Subject Category
Aircraft
Report/Patent Number
NASA-TM-X-2212
L-7555
Accession Number
72N18008
Funding Number(s)
PROJECT: RTOP 721-01-11-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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