Can the center tank be refueled at the same time as the wing tanks?

Can the center tank be refueled at the same time as the wing tanks?

• A. No
• B. Yes
• C. Only during certain conditions
• D. Only after wing tanks are full

Answer: (B)

The fuel system is designed to allow the center tank to be filled at the same time as the wing tanks. The refueling circuit and transfer/boost pumps connect to all tanks, so ground fueling can supply fuel to the center tank and the wing tanks concurrently. This setup speeds up fueling and lets the aircraft reach its total fuel capacity efficiently without needing to stage fueling of one tank after another. The fuel management system monitors quantities and helps keep the overall balance correct, but there’s no procedural requirement to wait for wing tanks to fill first.

The fuel system is designed to allow the center tank to be filled at the same time as the wing tanks. The refueling circuit and transfer/boost pumps connect to all tanks, so ground fueling can supply fuel to the center tank and the wing tanks concurrently. This setup speeds up fueling and lets the aircraft reach its total fuel capacity efficiently without needing to stage fueling of one tank after another. The fuel management system monitors quantities and helps keep the overall balance correct, but there’s no procedural requirement to wait for wing tanks to fill first.