Which term refers to the aerodynamic surface components including rotors, but excluding propellers and rotating engine blades?

Which term refers to the aerodynamic surface components including rotors, but excluding propellers and rotating engine blades?

• A. Airframe
• B. Wings
• C. Airfoil Surfaces
• D. Rotor Assembly

Answer: (A)

The term airframe refers to the aircraft’s structure and all of its aerodynamic surfaces, including wings and, in rotorcraft, the rotor system. It encompasses the parts that interact with the air to provide lift and support, while excluding the powerplant components like the engine and propeller or rotating engine blades. So, when describing the aerodynamic surface components including rotors but excluding propellers and rotating engine blades, airframe is the best match because it covers the entire structure and all aerodynamic surfaces, not just a single part. Wings are included as part of the airframe, but the term is broader than just wings or rotor alone, and rotor assembly focuses only on the rotor portion without the rest of the surfaces.

The term airframe refers to the aircraft’s structure and all of its aerodynamic surfaces, including wings and, in rotorcraft, the rotor system. It encompasses the parts that interact with the air to provide lift and support, while excluding the powerplant components like the engine and propeller or rotating engine blades. So, when describing the aerodynamic surface components including rotors but excluding propellers and rotating engine blades, airframe is the best match because it covers the entire structure and all aerodynamic surfaces, not just a single part. Wings are included as part of the airframe, but the term is broader than just wings or rotor alone, and rotor assembly focuses only on the rotor portion without the rest of the surfaces.