The hazard area of an idling turbojet extends approximately how far aft?

The correct distance for the hazard area of an idling turbojet extends approximately 100 feet aft. This area is defined based on the potential dangers posed by jet blast and the associated risks of high-velocity exhaust gases being expelled from the engine when it is idling.

Understanding the concept of jet blast is essential, as it can cause objects to be displaced and create a hazardous environment for personnel and equipment located behind the aircraft. The established distance of 100 feet is a safety measure to ensure that both crew and bystanders maintain a safe distance from the aircraft, preventing injuries or accidents caused by the powerful force generated by the engines, even when they are not in the process of taking off or landing.

While other distances mentioned might reflect different situations or types of aircraft, the specified 100 feet is a widely recognized guideline for turbojet engines, making it crucial for safety protocols in aviation operations around jet aircraft.