What does checking the LOX gauge ensure?

Checking the LOX (Liquid Oxygen) gauge is crucial for ensuring a sufficient oxygen supply for the aircraft and its crew. The LOX system is essential in high-altitude jet operations, particularly for the Super Hornet, where the air becomes too thin for breathing. Sufficient oxygen is vital for pilot safety and operational effectiveness during flight. Monitoring the LOX gauge allows the plane captain to verify that there is an adequate supply of liquid oxygen to meet the demands of the aircraft, particularly during deployment or in challenging flight conditions. The absence of a proper oxygen supply could lead to serious safety risks, including hypoxia for the crew.

While proper aircraft maintenance and accurate fuel calculations are important for overall aircraft readiness, they are not directly related to the function of the LOX gauge. Emergency preparedness is also crucial, but it encompasses a broader range of procedures beyond just checking the LOX gauge.