Senior Airman Christian Sharpe, 721st Aircraft Maintenance Squadron aerospace maintenance technician, refills the liquid oxygen in a C-17 Globemaster III Sept. 22, 2016 at Ramstein Air Base, Germany. Liquid oxygen is a source of breathing oxygen for pilots and aircrew at high altitudes. ( Air Force photo/Senior Airman Tryphena Mayhugh)

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Size: 6016px × 3764px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -17, ., 452nd, 721st, air, aircraft, airman, amxs, base, force, globemaster, iii, maintenance, mayhugh, mxs, rab, ramstein, senior, squadron, sra, states, tryphena, united, usaf