Accession Number : ADD016140

Title :   Active Vortex Control for a High Performance Wing.

Descriptive Note : Patent, Filed 21 Dec 92, patented 1 Feb 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Walters, Marvin M ; Kern, Steven B

Report Date : 01 Feb 1994

Pagination or Media Count : 12

Abstract : An on-demand wing vortex control system includes a pair of retractable panels which extend forward through slots in the leading edges of the strake and main wing at their junction. When not in use, the device is retracted in a stowed position, thus having zero impact on the cruise efficiency and observability characteristics designed into the aircraft. The panels extend forward from the strake and wing, providing an added leading edge airfoil surface when in the deployed position. Both panels are slideably and rotatably affixed to the aircraft. A front panel is affixed to and supported within the strake, while a rear panel is affixed and supported within the main wing. The planform of each panel is symmetrically identical, and the movements of the panels are mechanically coordinated

Descriptors :   *CONTROL SYSTEMS, *WINGS, *VORTICES, *PATENTS, AIRCRAFT, AIRFOILS, ANGLES, EFFICIENCY, IMPACT, JUNCTIONS, LEADING EDGES, LIFT, PANELS, PLANFORM, RETRACTABLE, RUPTURE, SHAPE, SLOTS, STRAKES, SURFACES

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE