When approaching the rear of an idling turbojet engine, what is the hazard area distance?

The hazard area distance when approaching the rear of an idling turbojet engine is 100 feet. This distance is critical for safety due to the potential dangers associated with jet exhaust and the ingestion of foreign objects. The high-speed jet of exhaust gases can create a significant amount of thrust, which may pose risks to personnel, especially if they are too close to the engine's rear.

The 100-foot distance is established as a safety guideline to ensure that individuals remain out of the range of the jet wash, which can cause loss of balance or being struck by debris. Additionally, this distance helps prevent any possible intake of loose items into the engine, as jet engines operate under high pressure and can generate strong suction at their intake areas. This standard is outlined to promote safe operational practices around turbine engines, thus preventing accidents or injuries.