What is the propeller intake danger area policy for a C-5 aircraft?

The propeller intake danger area policy for a C-5 aircraft is established to ensure the safety of personnel around the aircraft's engines. The intake danger area is classified as the zone where the force of airflow generated by the engines presents a significant hazard.

In the case of the C-5 aircraft, the danger area extends to 35 feet from the propeller intake. This distance is determined based on the engine's power and the potential risks of being caught in the airflow or debris being pulled into the engine. Personnel are advised to maintain this safe distance to prevent injury or accidents caused by powerful air vortices, which can be strong enough to lift or throw objects, or even affect individuals standing too close.

By adhering to this policy and maintaining a clearance of 35 feet, safety is significantly enhanced around the operation of the C-5, particularly during engine start, operation, or shutdown phases, where the risk of encountering hazardous conditions is heightened.