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Effect of conventional and square stores on the longitudinal aerodynamic characteristics of a fighter aircraft model at supersonic speedsThe effects of conventional and square stores on the longitudinal aerodynamic characteristics of a fighter aircraft configuration at Mach numbers of 1.6, 1.8, and 2.0 was investigated. Five conventional store configurations and six arrangements of a square store configuration were studied. All configurations of the stores produced small, positive increments in the pitching moment throughout the angle-of-attack range, but the configuration with area ruled wing tanks also had a slight decrease on stability at the higher angles of attack. There were some small changes in lift coefficient because of the addition of the stores, causing the drag increment to vary with the lift coefficient. As a result, there were corresponding changes in the increments of the maximum lift drag ratios. The store drag coefficient based on the cross sectional area of the stores ranged from a maximum of 1.1 for the configuration with three Maverick missiles to a minimum of about .040 for the two MK-84 bombs and the arrangements with four square stores touching or two square stores in tandem. Square stores located side by side yielded about 0.50 in the aft position compared to 0.74 in the forward position.
Document ID
19800015774
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Monta, W. J. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
June 1, 1980
Subject Category
Aerodynamics
Report/Patent Number
L-13402
NASA-TM-81791
Accession Number
80N24266
Funding Number(s)
PROJECT: RTOP 505-43-23-03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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