What is the maximum allowable fuel imbalance between inner tanks if the heavier tank is full?

The maximum allowable fuel imbalance between the inner tanks, with the heavier tank being full, is 3,300 pounds. This limit is established to ensure that the aircraft remains within its operational parameters and maintains balanced aerodynamic characteristics. An imbalance greater than this threshold could negatively impact aircraft stability, fuel system performance, and engine efficiency, making it crucial for safe flight operations.

The established fuel imbalance limit takes into account the performance characteristics of the A320, ensuring that even with one tank full, the other can still operate effectively without risking structural or performance issues. Fuel management is an essential aspect of flight operations, and adhering to these limits is part of maintaining safe and efficient flight.