Avionics
![F‑105 Thunderchief with avionics laid out](/Images/godic/202412/22/Republic_F-105B_with_avionics_layout_060831-F-1234S-0464003.jpg")
![Roughly 20 percent of the costs of the F-15E is in avionics.](/Images/godic/202412/22/4thoperationsgroup-f-15es4003.jpg")
![The Airbus A380 glass cockpit featuring pull-out keyboards and two wide computer screens on the sides for pilots.](/Images/godic/202412/22/Airbus_A380_cockpit4003.jpg")
Avionics are the electronic systems used on aircraft, artificial satellites, and spacecraft. Avionic systems include communications, navigation, the display and management of multiple systems, and the hundreds of systems that are fitted to aircraft to perform individual functions. These can be as simple as a searchlight for a police helicopter or as complicated as the tactical system for an airborne early warning platform. The term avionics is a portmanteau of the words aviation and electronics.