What is the maximum fuel imbalance allowed during over-wing refueling?

What is the maximum fuel imbalance allowed during over-wing refueling?

• A. 2,500 Pounds
• B. 1,000 Pounds
• C. 5,000 Pounds
• D. 3,000 Pounds

Answer: (A)

The main idea here is fuel balance during refueling. When you’re adding fuel over the wings, you want the weight on both wings to stay within a safe range so the airplane remains easy to control and within its weight-and-balance limits. The best answer is 2,500 pounds because this is the maximum imbalance allowed while performing over-wing refueling on the CRJ-550. Keeping the difference between left and right wing fuel within this limit prevents excessive asymmetric loading, which could cause a noticeable roll tendency and push the aircraft toward handling limits during ground operations and the climb phase. If the imbalance approaches or exceeds this value, fueling on the heavier side should be paused and steps taken to balance the wings before continuing. Other values would either be too restrictive, causing unnecessary stops in fueling, or too large, risking unsafe handling and exceeding the aircraft’s balance margins.

The main idea here is fuel balance during refueling. When you’re adding fuel over the wings, you want the weight on both wings to stay within a safe range so the airplane remains easy to control and within its weight-and-balance limits.

The best answer is 2,500 pounds because this is the maximum imbalance allowed while performing over-wing refueling on the CRJ-550. Keeping the difference between left and right wing fuel within this limit prevents excessive asymmetric loading, which could cause a noticeable roll tendency and push the aircraft toward handling limits during ground operations and the climb phase. If the imbalance approaches or exceeds this value, fueling on the heavier side should be paused and steps taken to balance the wings before continuing.

Other values would either be too restrictive, causing unnecessary stops in fueling, or too large, risking unsafe handling and exceeding the aircraft’s balance margins.