Final answer:
The seventh person needed for moving an airplane into a hangar is typically a safety officer or a wing-walker whose responsibility is to ensure that all safety protocols are followed during the movement of the aircraft.
Step-by-step explanation:
The seventh person typically required if moving an airplane into a hangar is known as a safety officer or a wing-walker. When moving an aircraft, a typical team includes a tow operator, brake operator, one or more wing-walkers, and a safety officer. The safety officer's primary responsibility is to oversee the operation and ensure that all safety protocols are being followed.
This role is essential to prevent accidents and to maintain a safe operating environment. The safety personnel are in constant communication with the tow operator and other team members to provide instructions or stop the operation if necessary, to avoid any potential collisions or infractions of safety rules.
The precise team composition and the roles can vary depending on the size of the aircraft, the specific hangar operations, and the policies of the aviation organization. Regardless, safety is the highest priority when moving aircraft, and having a dedicated person to oversee these operations is a critical aspect of aviation safety management systems.