How many wing walkers are required during the movement of an aircraft?

During the movement of an aircraft, two wing walkers are required to ensure safety and proper communication. Their primary role is to monitor the wings’ clearance and facilitate the safe maneuvering of the aircraft, especially in tight spaces or congested areas where visibility may be limited. The wing walkers work to signal to the ground crew and the pilot, allowing for coordinated movements and preventing any potential collisions with obstacles or personnel.

Having two wing walkers allows one to be positioned at each wingtip, providing a comprehensive view of the aircraft's surroundings from both sides. This setup enhances situational awareness and safety, as each walker can communicate potential dangers and guide the aircraft effectively during taxiing or other movements on the ground.

Other choices, such as having one, three, or four wing walkers, would not meet the standard safety requirements for typical aircraft movement. One wing walker lacks the necessary comprehensive coverage, while three or four could create unnecessary complexity and redundancy in the movement process. Thus, the requirement for two wing walkers strikes an optimal balance between safety and efficiency.