Ricardo Tarin, 575th Aircraft Maintenance Squadron aircraft maintenance machinist, drills new holes into an upper center longeron April 18, 2018, at Joint Base San Antonio-Randolph, Texas, that will be installed on a T-38 Talon during the Pacer Classic III upgrades. (U.S. Air Force photo by Alex R. Lloyd)

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Photo by: Mr. Alex R. Lloyd (GS-12) |  VIRIN: 180418-F-EI321-0734.JPG