365th Training Squadron F-16 avionics course Airmen work on an F-16 Fighting Falcon trainer jet at Sheppard Air Force Base, Texas, Sept. 26, 2018. Avionics are responsible for the electronic systems used in the aircraft. Without avionics, navigation, communication and multiple other systems, would not perform to their best abilities or worse, not work at all hindering the mission and safety of the pilot. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)