The fuselage, booms, nacelles, cowlings, fairings, airfoil surfaces (including rotors but excluding propellers and rotating airfoils of engines), and landing gear belong to which major component group?

• A. Airframe
• B. Airplane
• C. Aircraft Engine
• D. Air Carrier

Answer: (A)

The major component group being tested is the airframe. These parts—fuselage, booms, nacelles, cowlings, fairings, airfoil surfaces (like wings and rotor blades), and landing gear—constitute the structural framework and external aerodynamic surfaces of the aircraft that define its shape and how it carries loads and interacts with the air. They form the essential skeleton and surfaces that all other systems attach to or work with. The engine, propeller, and related powerplant components are considered separate from this group; the term airplane refers to the whole vehicle, not a specific component group, and an air carrier is the organization that operates the aircraft.