Which personnel are necessary for safely moving an aircraft through the hangar?

The correct choice emphasizes the importance of a coordinated team to ensure the safe movement of an aircraft through the hangar. The designation of Plane Captain (PC), Brake Rider, Tow Tractor Driver, safety observers, and wing walkers collectively addresses the various aspects of skilled operational safety.

The Plane Captain is responsible for the overall supervision and management of the aircraft's movement, ensuring all safety protocols are followed. The Brake Rider monitors the braking system of the aircraft to prevent any unintended movement. The Tow Tractor Driver handles the equipment used to physically move the aircraft, requiring a thorough understanding of both the aircraft's and the tractor's operational capabilities.

Safety observers play a critical role in maintaining situational awareness, particularly in a confined space like a hangar where visibility may be limited. Wing walkers are positioned on either side of the aircraft to assist with any necessary directional guidance and to ensure clearance from obstacles.

This integrated approach not only enhances safety but also streamlines communication and coordination among personnel, which is essential for safely navigating through potentially crowded and hazardous environments like hangars.