Pressure Refueling psi specification is:

Pressure Refueling psi specification is:

• A. 60 psi
• B. 50 psi
• C. 45 psi
• D. 55 psi

Answer: (D)

During pressure refueling, the system is designed to deliver fuel into the helicopter at a specific target pressure. For the UH-60, that target is 55 psi. This value provides a reliable, steady flow into the fuel system without overloading hoses, fittings, or the aircraft’s relief valves, while also avoiding too slow a transfer or air entrainment that can occur at lower pressures. Using 60 psi could push the system toward overpressure and potential leaks or venting, while 50 psi or 45 psi would typically be too low for efficient, consistent fueling. So 55 psi is the correct specification to aim for during pressure refueling.

During pressure refueling, the system is designed to deliver fuel into the helicopter at a specific target pressure. For the UH-60, that target is 55 psi. This value provides a reliable, steady flow into the fuel system without overloading hoses, fittings, or the aircraft’s relief valves, while also avoiding too slow a transfer or air entrainment that can occur at lower pressures. Using 60 psi could push the system toward overpressure and potential leaks or venting, while 50 psi or 45 psi would typically be too low for efficient, consistent fueling. So 55 psi is the correct specification to aim for during pressure refueling.