Back to results
US 8,944,386 B2Granted
Split blended winglet
AssigneeAviation Partners, Inc.
InventorLouis B. Gratzer
Life of this patent
Estimating the term…
Abstract
A split winglet is disclosed having a first generally upward projecting wing end, and a second generally downward projecting wing end. The second generally downward projecting wing end may be integrally formed with the first generally upward projecting wing end to form a winglet assembly or may be separately attached onto an existing upwardly curved winglet.
Claims29
A wing tip configured to be attached to an attachment end of a wing defining a wing chord plane, comprising:
- a winglet configured to couple to the attachment end as a continuous extension of the wing, the winglet smoothly transitioning from a continuous extension portion in the wing chord plane to a portion extending above the wing chord plane, the winglet including a leading edge swept rearward;
- and
- a fin coupled to the winglet, extending below the wing chord plane, the fin having:
- a leading edge swept rearward, the leading edge including a first curve adjacent the winglet and a second curve adjacent a tip section;
- and
- a trailing edge including a third curve adjacent the tip section.
3 more elements
A wing tip attachable to a wing end, comprising:
- an upward projecting portion shaped to smoothly and continuously transition from the wing end, the upward projecting portion including a leading edge swept rearward;
- and
- a lower projecting portion emanating from a chordwise wing location of the upward projecting portion, the lower projecting portion having:
- a leading edge swept rearward, the leading edge including a first curve adjacent the upward projecting portion and a second curve adjacent a tip section;
- and
- a trailing edge including a third curve adjacent the tip section,
- wherein the upward projecting portion and the lower projecting portion project outwardly from the wing end.
4 more elements
An aircraft with a wing projecting from a body, the wing having a split wing tip, the split wing tip comprising:
- a first wing end extending from the wing away from the body along an entire length of the first wing end and projecting above a plane of the wing, the first wing including a leading edge swept rearward;
- and
- a second wing end extending from a lower surface of the first wing end and projecting below the plane of the wing, the second wing end having:
- a leading edge swept rearward, the leading edge including a first curve adjacent the first wing end and a second curve adjacent a tip;
- and
- a trailing edge including a third curve adjacent the tip.
3 more elements
Dependencies are inferred from the claim text.