At Idle Thrust, the Intake Damage Area is how many feet?

At Idle Thrust, the Intake Damage Area is how many feet?

• A. 10 Feet
• B. 13 Feet
• C. 20 Feet
• D. 25 Feet

Answer: (B)

The concept here is the intake hazard radius when the engine is running at idle. Even at idle, the engine intake can pull in loose objects and pose a risk to people and equipment, so a specific clearance around the intake is defined. For idle thrust, that defined Intake Damage Area is 13 feet. This distance balances safety with practicality: close enough to catch potential hazards at the intake, but far enough to reduce the chance of ingestion at low power settings. The other distances aren’t used for idle thrust. They would be more appropriate for different engine settings or stricter safety guidelines, but the established idle value is 13 feet.

The concept here is the intake hazard radius when the engine is running at idle. Even at idle, the engine intake can pull in loose objects and pose a risk to people and equipment, so a specific clearance around the intake is defined. For idle thrust, that defined Intake Damage Area is 13 feet. This distance balances safety with practicality: close enough to catch potential hazards at the intake, but far enough to reduce the chance of ingestion at low power settings.

The other distances aren’t used for idle thrust. They would be more appropriate for different engine settings or stricter safety guidelines, but the established idle value is 13 feet.