How far does the hazard area extend forward of an idling jet engine?

How far does the hazard area extend forward of an idling jet engine?

• A. 25 feet
• B. 50 feet
• C. 75 feet
• D. 100 feet

Answer: (A)

When a jet engine is running, the main danger is the jet blast that shoots forward from the engine. Even at idle, the exhaust velocity can move debris and injure anyone standing in the path, so a safety clearance is needed. The distance widely used for an idling engine is 25 feet forward. This relatively small gap reflects that the engine isn’t producing full thrust, but it’s still enough to cause harm if you’re too close. Distances like 50, 75, or 100 feet apply to higher power settings or stricter safety practices, but for a non-full-thrust idle, 25 feet is the standard safe forward distance.

When a jet engine is running, the main danger is the jet blast that shoots forward from the engine. Even at idle, the exhaust velocity can move debris and injure anyone standing in the path, so a safety clearance is needed. The distance widely used for an idling engine is 25 feet forward. This relatively small gap reflects that the engine isn’t producing full thrust, but it’s still enough to cause harm if you’re too close. Distances like 50, 75, or 100 feet apply to higher power settings or stricter safety practices, but for a non-full-thrust idle, 25 feet is the standard safe forward distance.