What is the maximum wing tank imbalance allowed for takeoff in the Beechjet 400A?

• A. 100 lbs
• B. 50 lbs
• C. 200 lbs
• D. 300 lbs

Answer: (A)

The main idea here is that there is a safety limit on how much fuel difference you can have between the left and right wing tanks during takeoff. A wing-to-wing fuel imbalance shifts the airplane’s center of gravity toward the heavier wing, creating a rolling moment that reduces controllability right when you need precise handling on the takeoff roll and during liftoff and initial climb.

For the Beechjet 400A, that maximum allowable imbalance is 100 pounds. Keeping the imbalance within this limit helps ensure there is still sufficient aileron authority and stable control to manage the takeoff safely, even with the normal thrust and aerodynamic loads present during that phase.

If you ever find the imbalance exceeds this limit, you should balance the fuel by transferring from the heavier wing to the lighter one or otherwise adjust before takeoff to bring the difference within the allowed value.