Master Sgt. Jessica Young, aircraft parts store and mobility readiness spares parts section chief assigned to the 28th Logistics Readiness Squadron, opens an Internal Slingable Unit on the flight line at Ellsworth Air Force Base, S.D., April 12, 2017. The 28th LRS received an updated model of the unit on April 10, 2017, which incorporates installed drawers that allow for consumable materials to be transported. (U.S. Air Force photo by Airman Nicolas Z. Erwin)