How is pressure fueling of aircraft usually performed?

Pressure fueling is typically performed using a single point connection because this method allows for efficient fuel transfer into the aircraft's fueling system. A single point fueling connection simplifies the process, enabling the fuel to be delivered directly into the aircraft’s fuel tanks from a centralized fueling system.

This system is designed to maintain pressure throughout the fueling process, which speeds up refueling times and reduces the potential for fuel spillage. The use of a single point connection also minimizes the number of hoses and connections required, thus enhancing safety and operational efficiency at the fueling site.

In contrast, multiple hoses or gravity-fed systems are not standard practices for commercial aircraft refueling, as they can lead to complications such as uneven fueling across tanks and increased refueling time. Likewise, manual pumps require more labor and are prone to human error, making them less desirable for efficient fueling operations.