Which personnel must be present during the aircraft movement in the hangar?

During aircraft movement in the hangar, it is essential to ensure safety and control, which is why the presence of the Plane Captain (PC), the Brake Rider, and any required safety personnel is mandatory. The Plane Captain holds responsibility for the overall operation and safety of the aircraft, ensuring that all pre-movement checks have been completed. The Brake Rider is situated in the cockpit, ready to control braking systems and respond to any commands from the Plane Captain.

In addition to these roles, designated safety personnel are crucial to prevent accidents and ensure a clear path during the movement of the aircraft. They help manage the movement within the confined space of the hangar, assessing any potential hazards and providing guidance. This combination of personnel enhances safety and operational efficiency during aircraft maneuvering in such critical environments.

The other choices do not align with the established protocols for aircraft movement. For example, having only a pilot present does not fulfill the complete safety measures required. Likewise, a mix of crew members lacking specific designations may lead to miscommunication or oversight during the move, which could compromise safety.