Air navigation devices are tools that help pilots determine their position and navigate safely through the skies. These devices include systems like Global Positioning System (GPS), which provides precise location data, and VHF Omnidirectional Range (VOR), which helps pilots find their way using radio signals. Additionally, Inertial Navigation Systems (INS) use sensors to track an aircraft's movement, while Automatic Dependent Surveillance–Broadcast (ADS-B) allows aircraft to share their location with air traffic control and other planes. Together, these devices enhance safety and efficiency in air travel.