U.S. Marine Corps photo by Cpl. Brendan Roethel/Released 140624-M-RT263-003.JPG
Jun 27, 2014
Lance Cpl. Kieth McGaha, a cryogenics technician with Marine Aviation Logistics Squadron 31, drains a liquid oxygen tank at the Cryogenics Facility aboard Marine Corps Air Station Beaufort, June 24. Cryogenics Marines must empty the tanks prior to replacing it's gauges.Cryogenics technicians use a large machine called an oxygen/nitrogen generating plant that isolates the two useful gasses from the air and chills them to their liquid form. Oxygen is used to supply aircraft with breathable air for pilots, crew members and passengers. Nitrogen is used in multiple areas of aircraft including the canopy, tires, struts and more.
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