What is the maximum fuel imbalance allowed for takeoff?

The maximum fuel imbalance allowed for takeoff is indeed established as 300 lbs. This limit is put in place to ensure the safe operation of the aircraft, particularly in terms of maintaining balance and stability during the critical phase of takeoff. An imbalance exceeding this threshold can lead to adverse aerodynamic effects, affecting the aircraft's performance and handling characteristics.

Maintaining a controlled fuel imbalance helps ensure that both wings are producing equal lift and minimizes the risk of directional control issues. If the discrepancy in fuel weight between the wings is significant, it can result in an increased drag and potentially lead to difficulties in controlling the aircraft, especially during maneuvers that occur shortly after takeoff. Therefore, adhering to this limit is essential for flight safety and compliance with operational guidelines.