170210-N-GO179-001 PENSACOLA, Fla. (Feb. 10, 2017) Aviation Machinist's Mate Airman Robert Vilie installs the main fuel control on an F404-GE-400 training aid during the Naval Air Technical Training Center's (NATTC) mechanical department Jet Strand course. The five-week course is one of several NATTC classes providing training and increasing readiness within the Naval Aviation Enterprise. (U.S. Navy photo by Bruce Cummins/Released)