Hydro brake-down
Airmen 1st Class J.C. Hutchins, 509th Maintenance Squadron hydraulic systems repair technician, measures tolerances on a heat stack from a B-2 Spirit brake system at Whiteman Air Force Base, Mo., March 22, 2013. Heat stacks must be measured to ensure they are not below the minimum required tolerance for flight operations. (U.S. Air Force photo by Airman 1st Class Bryan Crane/Released)

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Photo by: Airman st Class Bryan CraneReleased |  VIRIN: 130322-F-IW726-083.JPG