P8-A SPRB Practice Exam

Center tank capacity is the maximum amount of fuel the aircraft’s centerline tank can hold, limited by the tank’s size and the aircraft’s weight and balance limits. The published value for this airframe is 27,900 pounds of fuel in the center tank, which is about 4,100 gallons in typical jet fuel density. This capacity keeps the airplane within the acceptable center-of-gravity range and structural limits during all phases of flight when the center tank is full. The other figures fall outside the design spec: 15,000 pounds would underutilize the tank, while 40,000 or 60,000 pounds would exceed its capacity and disrupt weight and balance certainties.