Air navigation is the process of determining an aircraft's position and planning its route to ensure safe and efficient travel through the air. It involves using various tools and technologies, such as GPS, radar, and navigation charts, to guide pilots from one location to another. Pilots rely on both visual and instrument navigation techniques. Visual navigation uses landmarks and terrain features, while instrument navigation depends on electronic systems to provide accurate information about the aircraft's altitude, speed, and direction. Together, these methods help maintain safety and efficiency in the aviation industry.