Pressure fueling of aircraft is usually accomplished through?

Pressure fueling of aircraft is typically accomplished through at least one single point connection because this method facilitates the rapid and efficient transfer of fuel into the aircraft's fuelling system. By using a single point connection, ground personnel can connect the fueling apparatus to the aircraft at one designated location, minimizing the time spent fueling and improving safety by reducing the number of connections and potential leaks.

This approach provides a controlled and centralized means of delivering fuel into the tanks, allowing for quick refueling operations, which is essential for maintaining flight schedules. Furthermore, a single point connection can be designed to automatically balance the fuel load across multiple tanks, ensuring that the aircraft is safely and evenly fueled.

In contrast, other methods mentioned, such as individual fuel tank access points or pressure connections on individual fuel tanks, could lead to longer refueling times and potentially increase the risk of spills or accidents. Multiple underground pipelines are more commonly associated with fuel storage and distribution at airports rather than direct connections to aircraft for refueling.