What metal is used to make aeroplanes?

Aluminum is the primary metal used in the construction of airplanes due to its lightweight and high strength-to-weight ratio, which enhances fuel efficiency and performance. Additionally, titanium is often utilized for critical components because of its strength and resistance to high temperatures and corrosion. Steel is also used in various applications where additional strength is required. These materials are carefully selected to ensure safety, durability, and efficiency in aviation.