9 July 2002 DARPA/AFRL Smart Wing Phase 2 wind tunnel test results
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Abstract
Northrop Grumman Corporation built and twice tested a 30 percent scale wind tunnel model of a proposed uninhabited combat air vehicle under the DARPA/AFRL Smart Materials and Structures Development - Smart Wing Phase 2 program to demonstrate the applicability of smart control surfaces on advanced aircraft configurations. The model constructed was a full span, sting mounted model with smart leading and trailing edge control surfaces on the right wing and conventional, hinged trailing edge control surfaces on the left wing. Among the performance benefits that were quantified were increased pitching moment, increased rolling moment and improved pressure distribution of the smart wing over the conventional wing. This paper present an overview of the result from the wind tunnel test performed at NASA Langley Research Center's Transonic Dynamic Tunnel in March 2000 and May 2001. Successful results included: (1) improved aileron effectiveness at high dynamic pressures, (2) demonstrated improvements in lateral and longitudinal effectiveness with smooth contoured smart trailing edge over conventional hinged control surfaces, (3) chordwise and spanwise shape control of the smart trailing edge control surface, and (4) smart trailing edge control surface deflection rates over 80 deg/sec.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lewis B. Scherer, Lewis B. Scherer, C. A. Martin, C. A. Martin, Brian P. Sanders, Brian P. Sanders, Mark N. West, Mark N. West, Jennifer L. Pinkerton-Florance, Jennifer L. Pinkerton-Florance, Carol D. Wieseman, Carol D. Wieseman, Alpheus W. Burner, Alpheus W. Burner, Gary A. Fleming, Gary A. Fleming, } "DARPA/AFRL Smart Wing Phase 2 wind tunnel test results", Proc. SPIE 4698, Smart Structures and Materials 2002: Industrial and Commercial Applications of Smart Structures Technologies, (9 July 2002); doi: 10.1117/12.475104; https://doi.org/10.1117/12.475104
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