This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
AFTI/F-111 Performance Flight Test Summary
Annotation ability available
Sector:
Language:
English
Abstract
The AFTI/F-111 Mission Adaptive Wing (MAW) incorporates a smooth variable contour wing system in order to maintain optimum camber throughout all flight regimes. The aircraft has completed its initial phase of flight testing at Edwards AFB CA. The purpose of this paper is to briefly summarize the aerodynamic and performance results.
Comparisons of MAW flight test data are made against full-scale wind tunnel predictions and flight test data from a fixed camber wing of similar geometry. Wing pressure plots are presented to show the effectiveness of both the supercritical and the variable camber airfoils. Point performance plots show improvements in aerodynamic efficiency and maneuverability. Turn performance gains of as much as 38% are attainable. Range improvements of 25% are shown for a high altitude supersonic combat mission.
The AFTI/F-111 is demonstrating aerodynamic improvements achieved by using a smooth variable contour wing system. This paper documents these improvements and projects the resulting benefits to an aircraft in an operational environment.
Authors
Citation
Smith, F., Harshberger, G., and Ujcik, V., "AFTI/F-111 Performance Flight Test Summary," SAE Technical Paper 871881, 1987, https://doi.org/10.4271/871881.Also In
References
- AFTI/F-111 ADPO “AFTI/F-111 Briefing to Industry, 18 & 19 Nov 85” November 1985
- The Boeing Military Airplane Co. “AFTI/F-111 Aerodynamics Final Report” Boeing Document D365-10110-1 February 1987
- Wong, K. “AFTI/F-111 Mission Adaptive Wing Lift and Drag Flight Test Results” AFFTC-TR-87-02 April 1987
- Smith, F. R. Harshberger, G. W. Ujcik, V. G. “Phase 1 Performance Results of the AFTI/F-111 Mission Adaptive Wing Flight Test”
- Johnson, D. T. “NSEG-Segmented Mission Analysis Program” AFFDL-TM-FXG-79-38 April 1979 June 1984