What is the maximum usable fuel capacity when using the primary refueling method?

The maximum usable fuel capacity when using the primary refueling method is determined by the specific limitations and design specifications of the aircraft. In this case, the correct response identifies the usable fuel capacity as 1,100 lbs, which aligns with the operational standards and certifications established for the aircraft. This figure accounts for factors such as safety margins, weight restrictions, and performance criteria that ensure efficient and safe flight operations.

Understanding this value is crucial for pilots and operations personnel as it influences flight planning, fuel management, and overall mission execution. Properly managing fuel in line with this capacity is essential to maintaining optimal aircraft performance and safety during operations.