At maximum thrust, the intake damage area is how many feet?

At maximum thrust, the intake damage area is how many feet?

• A. 26 Feet
• B. 300 Feet
• C. 50 Feet
• D. 100 Feet

Answer: (A)

When an engine is at maximum thrust, the intake creates a strong suction zone in front of the engine. This intake damage area is the distance within which loose items or even body parts could be drawn into the engine and cause serious damage or injury. The tested value for this hazard radius on the CRJ-550 procedures is 26 feet. So, the safe operating rule is to stay at least 26 feet away from the engine intake when it’s at high power. Other distances aren’t used for this specific hazard. For example, 300 feet is more representative of jet blast distance behind the aircraft or from the tail area, not the forward intake risk. Distances like 50 or 100 feet are larger than the defined intake danger radius and aren’t the standard measured intake hazard for maximum thrust.

When an engine is at maximum thrust, the intake creates a strong suction zone in front of the engine. This intake damage area is the distance within which loose items or even body parts could be drawn into the engine and cause serious damage or injury. The tested value for this hazard radius on the CRJ-550 procedures is 26 feet. So, the safe operating rule is to stay at least 26 feet away from the engine intake when it’s at high power.

Other distances aren’t used for this specific hazard. For example, 300 feet is more representative of jet blast distance behind the aircraft or from the tail area, not the forward intake risk. Distances like 50 or 100 feet are larger than the defined intake danger radius and aren’t the standard measured intake hazard for maximum thrust.