A Heading Indicator is an instrument used in aircraft to display the direction the aircraft is facing, measured in degrees. It helps pilots maintain their intended course by showing the aircraft's heading relative to magnetic north. This instrument is crucial for navigation, especially in low visibility conditions. The Heading Indicator typically works in conjunction with the Magnetic Compass and is often part of the aircraft's Flight Instrumentation system. It can be adjusted to account for magnetic variation, ensuring accurate navigation. Pilots rely on this tool to make informed decisions during flight, enhancing safety and efficiency.