Patent ID: 8765042

Claim:
A method of manufacturing a fuselage section of an airplane comprising a fuselage section skin, the method comprising: placing an inside layer of the fuselage section skin comprising first fibers on a construction mold, the first fibers being placed in one or more first fiber directions; forming a stiffening structure comprising stiffening fibers on the inside layer, the stiffening fibers being placed in one or more stiffening fiber directions, the stiffening fibers comprising second fibers, or third fibers, or a combination of the second fibers and the third fibers; placing an outside layer of the fuselage section skin comprising fourth fibers on the stiffening structure, the fourth fibers being placed in one or more fourth fiber directions, wherein the stiffening fiber directions differ from the first fiber directions and the fourth fiber directions; and curing the inside layer, the stiffening structure and the outside layer to form the fuselage section comprising the fuselage section skin having a skin thickness D; and separating the fuselage section comprising the fuselage section skin from the construction mold.