What metal is a Boeing 747 made of?
Main fuselage and wing spars are constructed of aluminium alloys. Carbon composites used extensively in secondary structures. Engine exhaust cone made of titanium and engine pylons from titanium, steel and aluminium. Distinctive design with hump at front of aircraft. Aluminum is used for the wing and tail leading edges; titanium is used mainly on engines and fasteners, with steel used in various areas. Each Boeing 787 aircraft contains approximately 32,000 kg of CFRP composites, made with 23 t of carbon fiber [11]. Composites are used on fuselage, wings, tail, doors, and interior.