Efficient wing tip devices for use with aircraft wings. In one embodiment,
an aircraft wing/winglet combination includes a wing having a wing root portion
and a wing tip portion spaced apart from the wing root portion. The wing tip portion
can have a wash-out twist relative to the wing root portion. The aircraft wing/winglet
combination can further include a winglet extending from the wing tip portion of
the wing. The winglet can be swept at least generally forward relative to the wing
to favorably change the lift distribution on the wing and in turn reduce the induced
drag on the wing.
