Abstract: Apparatus and systems provide for the construction of wing sections having a plurality of wing spars abutted against each other to form a contiguous multi-box wing spar layup. An aircraft wing includes a plurality of wing spars configured to be attached to an aircraft fuselage, an upper wing surface, and a lower wing surface. The plurality of wing spars are in a multi-box wing spar layup. The plurality of wing spars, the upper wing surface, and the lower wing surface are composite layers having continuous fibers.

Abstract: Apparatus and systems provide for the construction of wing sections having multi-box wing spars. According to one aspect of the disclosure provided herein, an aircraft wing includes multi-box wing spars attached to an aircraft fuselage, an upper wing surface, a lower wing surface, and a number of wing segments. The multi-box wing spars, upper wing surface, and lower wing surface are composite layers having continuous fibers.

Abstract: Apparatus and methods provide for the construction of wing sections having multi-box wing spars. According to one aspect of the disclosure provided herein, an aircraft wing may be constructed by applying one or more layers of composite material onto a plurality of wing mandrels. The wing mandrels, when placed together, form the shape of the wing. After the layers of composite material are applied to each individual mandrel, the mandrels are abutted together. Thereafter, the mandrels are compressed using wing surface tooling applied to the plurality of wing mandrels. The composite material is thereafter cured. After curing, the wing surface tooling and mandrels are removed, resulting in a wing having multi-box wing spars and skin.

Abstract: Apparatus and methods provide for the reinforcement of various components of an aircraft utilizing vertically-oriented circumferential stringers. According to embodiments described herein, barrel skin of an aircraft fuselage may be reinforced using stringers that are vertically-oriented and circumferential. According to additional embodiments, the wing stringers of a wing can be aligned with circumferential stringers. According to further embodiments, the wing may also have one or more wing spars having an elliptical aperture. The shape of the elliptical may be configured for attachment to a fuselage so that an outer surface of the aperture is disposed proximate to an inner surface of the fuselage.

Abstract: A fuselage assembly is provided. The fuselage assembly includes a first barrel section including a body that extends from a first end to a second end and a second barrel section coupled to said first barrel section. The second barrel section includes a body that extends from a first end to a second end, and the second end of the first barrel section is coupled to the second end of the second barrel section. At least one member maintains a coupling between the first barrel section and the second barrel section. The at least one member induces a compressive force to at least one of the first barrel section and the second barrel section.

Abstract: A fuselage assembly is provided. The fuselage assembly includes a first barrel section including a body that extends from a first end to a second end and a second barrel section coupled to said first barrel section. The second barrel section includes a body that extends from a first end to a second end, and the second end of the first barrel section is coupled to the second end of the second barrel section. At least one member maintains a coupling between the first barrel section and the second barrel section. The at least one member induces a compressive force to at least one of the first barrel section and the second barrel section.