Ronald Roman, 97th Maintenance Directorate hydraulics mechanic, checks a Air Force KC-135 Stratotanker selector valve for fluid, Nov. 11, 2016, Altus Air Force Base, Oklahoma. The valve is used to direct hydraulic fluid under pressure to raise or lower landing gear for takeoff and landing.

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Photo credit: © Conner Flecks / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -17, 97, afb, aircraft, altus, amw, archive, armed, defence, forces, hydraulics, kc-135, maintenance, military, pneudraulics, reportage, servicemen, usa