What is the fueling sequence for tanks?

What is the fueling sequence for tanks?

• A. Center first
• B. Wing and center simultaneously
• C. Wing tanks before center
• D. Center then wings

Answer: (C)

Fueling is guided by weight and balance. Filling the wing tanks first helps maintain lateral balance and keeps the aircraft level as fuel is added, since the wings are distant from the center of gravity and their shared load can be managed evenly. The center tank sits near the aircraft’s balance point, so adding fuel there early would move the overall weight more quickly toward the CG, making it harder to stay within allowable limits during the remaining fueling. By starting with the wing tanks and topping off with the center tank last, you can control the total fuel load while keeping the balance within safe limits throughout the process.

Fueling is guided by weight and balance. Filling the wing tanks first helps maintain lateral balance and keeps the aircraft level as fuel is added, since the wings are distant from the center of gravity and their shared load can be managed evenly. The center tank sits near the aircraft’s balance point, so adding fuel there early would move the overall weight more quickly toward the CG, making it harder to stay within allowable limits during the remaining fueling. By starting with the wing tanks and topping off with the center tank last, you can control the total fuel load while keeping the balance within safe limits throughout the process.