what is fuselage in aircraft

The fuselage is the main body section of an aircraft that holds the crew, passengers, or cargo. It is essentially the "body" of an aircraft or the large outer shell that encompasses the aircrafts main body. The fuselage is a core aspect of the aircraft and serves many purposes, including providing the shape and necessary aerodynamics for flight, serving as the assembly base for the rest of the aircraft, distributing force over the aircrafts exterior, and protecting the internals of the vehicle. The shape of the fuselage is normally determined by the mission of the aircraft. The weight of an aircraft is distributed all along the aircraft, and the fuselage, along with the passengers and cargo, contribute a significant portion of the weight of an aircraft. The center of gravity of the aircraft is usually located inside the fuselage. The fuselage can be constructed using different types of structures, including truss structure, monocoque structure, and composite materials. The predominant types of fuselage structures are the monocoque and semimonocoque, which provide better strength-to-weight ratios for the fuselage covering than the truss-type construction used in earlier planes.