What are Boeing 747 wings made of?
A long-range wide-body airliner and cargo aircraft. Main fuselage and wing spars are constructed of aluminium alloys. Likewise, steel is stronger than aluminum, but weighs significantly more. Steel is only used in aircraft when extremely high strength is needed, such as landing gears, or extremely high-speed planes.
How much aluminum is in a 747?
A 747-400 consists of 147,000 pounds (66,150 kg) of high-strength aluminum. A 747-400 has six million parts, half of which are fasteners.