Patent ID: 8382041
Filing Date: 2013-02-26
Classification: B33Y,B64C,Y02T

Abstract:
1. A rakelet wingtip device for an aircraft, comprising: a raked portion having an airfoil-shaped cross section, a proximal end, a distal end forming a raked portion distal chord, an upper surface, a lower surface, a leading edge, and a trailing edge, wherein the proximal end can be attached to a distal end of an aircraft wing and at least one of the leading edge and the trailing edge has a sweep angle greater than a sweep angle of a corresponding leading or trailing edge of the aircraft wing; and, a winglet portion having an airfoil-shaped cross section, a proximal end, a distal end, an upper surface, a lower surface, a cant angle, and a toe-out angle, wherein the proximal end of the winglet portion is joined to the distal end of the raked portion along about 52% of the raked portion distal chord.