Fuselage to wing attachment

1. An aircraft, comprising:

a fuselage comprising a first plurality of structural supports, a second plurality of structural supports, a first opening between the first plurality of structural supports, and a second opening between the second plurality of structural supports;

a wing member disposed above the first opening and above the second opening, the wing member comprising a plurality of ribs, the plurality of ribs comprising a first rib and a second rib;

a first fuselage beam coupling the first rib of the wing member to the fuselage, the first fuselage beam comprising an elongated body portion extending across the first plurality of structural supports; and

a second fuselage beam coupling the second rib of the wing member to the fuselage, the second fuselage beam comprising an elongated body portion extending across the second plurality of structural supports, wherein the aircraft is a tiltrotor aircraft comprising a rotor system that is, at least in part, tiltable between a helicopter mode position and an airplane mode position.

2. The aircraft of claim 1 , further comprising:

a power train comprising a power source and a drive shaft in mechanical communication with the power source; and

the rotor system coupled to the wing member and in mechanical communication with the drive shaft.

3. The aircraft of claim 1 , wherein:

the first plurality of structural supports comprises a first support and a second support;

the first opening is between the first support and the second support; and

the elongated body portion of the first fuselage beam extends across the first support and the second support.

4. The aircraft of claim 1 , wherein:

the first plurality of structural supports comprises a first support, a second support, and a third support;

the first opening is between the first support and the second support; and

the elongated body portion of the first fuselage beam extends across the first support, the second support, and the third support.

5. The aircraft of claim 1 , wherein:

the first plurality of structural supports comprises a first support, a second support, a third support, a fourth support, a fifth support, and a sixth support;

the first opening is between the third support and the fourth support; and

the elongated body portion of the first fuselage beam extends across the first support, the second support, the third support, the fourth support, the fifth support, and the sixth support.

6. The aircraft of claim 1 , wherein the first rib and the first fuselage beam are coplanar.

7. The aircraft of claim 1 , wherein the first rib and the first fuselage beam form a continuous structural element.

8. The aircraft of claim 1 , wherein the first rib is joined to the first fuselage beam along a single, uninterrupted joint.

9. The aircraft of claim 1 , wherein:

the wing member comprises an airfoil shape;

the first rib comprises an outer contour corresponding to the airfoil shape; and

the first fuselage beam comprises a top surface corresponding to the outer contour of the first rib.

10. The aircraft of claim 9 , wherein the first rib is coupled to the first fuselage beam where the top surface of the first fuselage beam receives the outer contour of the first rib.

11. The aircraft of claim 1 , wherein the first rib and the first fuselage beam form, in combination, an I-beam, wherein the first fuselage beam forms a lower portion of the I-beam and the first rib forms an upper portion of the I-beam.

12. The aircraft of claim 1 , wherein the first opening is a first door opening and the second opening is a second door opening, the aircraft further comprising a first door configured to open and close the first door opening and a second door configured to open and close the second door opening.

13. The aircraft of claim 1 , wherein the first and second openings are both so dimensioned as to allow ingress and egress of a human passenger.

14. The aircraft of claim 1 , further comprising a first forward attach fitting coupled to the first fuselage beam and the first rib forward of the wing member and a first aft attach fitting coupled to the first fuselage beam and the first rib aft of the wing member.

15. The aircraft of claim 14 , wherein the first rib, the first fuselage beam, the first forward attach fitting, and the first aft attach fitting are coplanar.

16. The aircraft of claim 14 , wherein the first rib, the first fuselage beam, the first forward attach fitting, and the first aft attach fitting form a continuous structural element.

17. The aircraft of claim 14 , wherein the first fuselage beam forms an I-beam in combination with the first rib, the first forward attach fitting, and the first aft attach fitting, wherein the first fuselage beam forms a lower portion of the I-beam and the first rib, the first forward attach fitting, and the first aft attach fitting, form an upper portion of the I-beam.

18. The aircraft of claim 14 , further comprising one or more lateral links coupled between a roof of the fuselage and at least one of the first rib, the first fuselage beam, the first forward attach fitting, and the first aft attach fitting.