The document discusses the construction of the Airbus A380 aircraft. It describes that the A380 uses a combination of materials for its structure, including 61% aluminum alloys, 22% composites, 10% titanium and steel, and 3% fiber metal laminate. It provides details on the fuselage, wings, and landing gear of the A380. The fuselage is made of composite materials and has a length of 73 meters. The wings have a span of 79.8 meters and use carbon fiber composite for the central wing box. The A380's landing gear system contains a total of 22 wheels to support the large aircraft.