WING TIP STRUCTURE FOR SUPPRESSING LIFT LOSS DUE TO VORTEX DRAG GENERATED AT SIDE OF WING

摘要

PROBLEM TO BE SOLVED: To provide a wing tip structure that increases lift by suppressing various lift decrease caused by the vortex generated at the end of the leading and trailing edge wing tips flowing from the lower surface under positive pressure to the top surface under negative pressure in the wing tip at the flight of a flying object.SOLUTION: A wing tip structure decreases a height of a wing tip part in conformity to lift decrease by the decrease of the leading-edge vortex in the falling, and reduces a weight burden. The structure is formed such that a wing-tip shape is formed in which the central ray rear becomes the upward inclination for traction to the lower rear due to viscous resistance of the wing tip vortex generated during flight, to bring the direction of inductive resistance close to teh horizontal direction. By forming the central ray rear into the upward inclination against the risk of tip stall due to the trailing vortex at the high angle of attack, sneak of the trailing vortex is suppressed to thereby retard the tip stall.SELECTED DRAWING: Figure 10