What is the required distance to remain behind aircraft with engines running?

The required distance to remain behind aircraft with engines running is 200 feet. This safety protocol is in place to protect personnel from the intense thrust generated by jet engines during operation, which can create strong wind gusts and potentially hazardous conditions.

Maintaining a significant distance, such as 200 feet, ensures that individuals are far enough away from the engine wash, which can cause loss of balance or propel lightweight objects, leading to injury or damage. This distance is carefully determined based on the power and size of the aircraft, as larger jets produce more powerful thrust, hence the need for a wider safety zone.

This practice is crucial for ensuring safety on the flight line and around parked aircraft, where personnel must be vigilant and aware of their surroundings at all times.