Which component should never be used to pull an aircraft?

The propeller is not designed for use as a pulling point when moving an aircraft. The primary function of the propeller is to generate thrust for flight, and applying force to it in a pulling manner could cause significant damage. Propellers are delicate components that are finely balanced; exerting force on them can lead to misalignment or breakage, which compromises both the functionality and safety of the aircraft.

In contrast, the other components—tail section, landing gear, and wings—while also not ideal for pulling the aircraft, do not carry the same inherent risks associated with the propeller. The tail section and wings are structural parts designed to withstand certain forces, but using them for pulling can still cause damage. The landing gear, specifically designed to support the weight of the aircraft while on the ground, can technically manage some movement; however, it is not advisable to use it as a pulling point either.

Understanding this distinction emphasizes the importance of using proper towing equipment and techniques to prevent damage and ensure safety when moving an aircraft.