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Wind tunnel investigation of a large-scale 25 deg swept-wing jet transport model with an external blowing triple-slotted flapAn investigation has been conducted to determine the aerodynamic characteristics of a large-scale subsonic jet transport model with an externally blown triple-slotted flap. The lift of the model was augmented by the turbofan engine exhaust impingement on the flap surface. The model had a 25 deg swept wing of aspect ratio 7.28 and four turbofan engines. The model was tested with two flap extents. One extended from 0.11 to 1.00 of the wing semispan, and the other extended from 0.11 to 0.75 of the wing semispan with a single-slotted aileron from 0.75 to 1.00 of the wing semispan. The results were obtained for several flap deflections with and without the horizontal tail at gross thrust coefficients from 0 to 4.0. Longitudinal and lateral data are presented with three and four engines operating.
Document ID
19740005608
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Aoyagi, K. (NASA Ames Research Center Moffett Field, CA, United States)
Falarski, M. D. (NASA Ames Research Center Moffett Field, CA, United States)
Koenig, D. G. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 3, 2013
Publication Date
November 1, 1973
Subject Category
Aircraft
Report/Patent Number
NASA-TM-X-62197
Accession Number
74N13721
Funding Number(s)
PROJECT: RTOP 760-61-02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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