Foldable raked wing tips having aerodynamic devices

1. A wing for use with an aircraft, the wing comprising:

a fixed portion;

a folding portion proximate a distal end of the wing, the folding portion including a raked surface;

at least one of a feather or a winglet; and

a hinge operatively coupled between the fixed and folding portions to enable the folding portion to fold relative to the fixed portion between a folded position and an unfolded position, the at least one of the feather or the winglet to extend past a bottom surface of the wing and a top surface of the wing in the unfolded position.

2. The wing as defined in claim 1 , wherein the folding portion includes the winglet.

3. The wing as defined in claim 2 , wherein the folding portion further includes the feather.

4. The wing as defined in claim 2 , wherein the winglet includes a height between approximately 0.2 to 0.9 of a semi-span of the folding portion.

5. The wing as defined in claim 2 , wherein the winglet includes an aspect ratio between approximately 1.0 to 6.0.

6. The wing as defined in claim 1 , wherein the folding portion rotates to an angular displacement greater than 90 degrees from the fixed portion.

7. The wing as defined in claim 1 , wherein the folding portion has an aspect ratio between approximately 1.4 to 2.5.

8. The wing as defined in claim 1 , wherein, in the folded position, an entirety of the at least one of the feather or the winglet is positioned on a side of the hinge that is closer to a fuselage of the aircraft.

9. An aerodynamic structure of an aircraft, the aerodynamic structure comprising:

a fixed portion including a first raked portion;

a folding portion including:

a second raked portion, and

at least one of a winglet or a feather; and

a hinge operatively coupling the fixed and foldable portions to enable the foldable portion to rotate relative to the fixed portion between a folded position and an unfolded position, the at least one of the winglet or the feather to extend past a bottom surface of the wing and past a top surface of the wing in the unfolded position.

10. The aerodynamic structure as defined in claim 9 , wherein the folding portion includes the winglet.

11. The aerodynamic structure as defined in claim 10 , wherein the folding portion further includes the feather.

12. The aerodynamic structure as defined in claim 10 , wherein the winglet includes a height between approximately 0.2 to 0.9 of a semi-span of the folding portion.

13. The aerodynamic structure as defined in claim 9 , wherein the folding portion rotates to an angular displacement greater than 90 degrees from the fixed portion.

14. The aerodynamic structure as defined in claim 9 , wherein the folding portion includes the feather, and wherein the feather has a joint location that is from approximately between 0.2 to 0.7 of a semi-span of the folding portion.

15. A folding wing tip to be rotated relative to a fixed portion of a wing, the folding wing tip comprising:

a raked portion extending along a lateral length of the folding wing tip;

at least one of a winglet or a feather; and

a hinge portion to be coupled to a hinge, the hinge to rotationally couple the folding wing tip to the fixed portion, the folding wing tip to move between a folded position and an unfolded position at the hinge portion, the at least one of the winglet or the feather to extend past a bottom surface of the wing and past a top surface of the wing in the unfolded position.

16. The folding wing tip as defined in claim 15 , wherein the raked portion and the at least one of the winglet or the feather are overlapping.

17. The folding wing tip as defined in claim 15 , wherein the folding wing tip includes the winglet with a height between approximately 0.2 to 0.9 of a semi-span of the folding wing tip.

18. The folding wing tip as defined in claim 15 , wherein the folding wing tip has an aspect ratio between approximately 1.4 to 2.5.

19. The folding wing tip as defined in claim 15 , wherein the folding wing tip includes the feather, and wherein the feather has a joint location that is from approximately between 0.2 to 0.7 of a semi-span of the folding wing tip.

20. A method comprising:

coupling a folding portion proximate to a distal portion of a wing, wherein the folding portion includes a raked surface, and wherein at least one of:

the folding portion includes a winglet, or

at least one of the wing or the folding portion includes a feather,

wherein the folding portion is to move between a folded position and an unfolded position, at least one of the winglet or the feather to extend past a bottom surface of the wing and past a top surface of the wing in the unfolded position.

21. The method as defined in claim 20 , further including defining at least one of the winglet or the feather onto the folding portion.

22. The method as defined in claim 20 , wherein coupling the folding portion proximate to the distal portion of the wing includes coupling the folding portion to a hinge.