What is the fuel fill quantity during gravity refueling?

The fuel fill quantity during gravity refueling is 4951 lbs because this is the amount that the aircraft is specifically designed to accommodate during this type of refueling process. Gravity refueling allows fuel to flow into the tanks without the need for a pump, relying instead on the force of gravity to fill the tanks until they reach their maximum capacity.

Understanding the specific capacity during gravity refueling is crucial for maintaining optimal aircraft performance and safety. It ensures that fuel is filled correctly without exceeding limits that could lead to weight issues affecting the aircraft's aerodynamics and handling. Each aircraft has detailed specifications regarding fuel capacity based on refueling methods, and 4951 lbs represents the maximum safe filling limit under gravity refueling conditions.