What is the maximum fuel imbalance allowed?

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Multiple Choice

What is the maximum fuel imbalance allowed?

Fuel distribution between the left and right tanks directly affects lateral balance. If one wing carries significantly more fuel, it creates a roll tendency and can push the center of gravity toward that wing, reducing controllability and potentially moving the CG outside allowable limits as fuel is burned. The maximum imbalance is specified to ensure safe handling in all phases of flight, including engine-out scenarios and fuel burn-down. For many general aviation light twins, the limit is 300 pounds of difference between the left and right tanks. So the maximum fuel imbalance allowed is 300 pounds (check your aircraft’s POH for the exact value and units for that model).

Fuel distribution between the left and right tanks directly affects lateral balance. If one wing carries significantly more fuel, it creates a roll tendency and can push the center of gravity toward that wing, reducing controllability and potentially moving the CG outside allowable limits as fuel is burned. The maximum imbalance is specified to ensure safe handling in all phases of flight, including engine-out scenarios and fuel burn-down.

For many general aviation light twins, the limit is 300 pounds of difference between the left and right tanks. So the maximum fuel imbalance allowed is 300 pounds (check your aircraft’s POH for the exact value and units for that model).

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