Staff Sgt. Sean Smith, 365th Training Squadron flight and instrument controls apprentice course instructor, teaches Airmen John Clayton and Brandon O’Daniel, how to work with a basic navigation system at Sheppard Air Force Base, Texas, Aug. 15, 2019. Every aircraft has a navigation system that must be properly maintained, repaired and inspected to accomplish the mission, so it is imperative for Airmen to ensure all components work and gauges are indicated. Clayton and O’Daniel are scheduled to graduate in Oct. 2019. (U.S. Air Force photo by Airman 1st Class Madeleine E. Remillard)