What is the primary function of an attitude indicator?

The primary function of an attitude indicator is to show the aircraft's orientation relative to the horizon. This instrument is vital for pilots, especially during instrument flight when visual references outside the aircraft may be limited or nonexistent. The attitude indicator displays whether the wings of the aircraft are level, climbing, descending, or in a turn in relation to the Earth's horizon.

Understanding the aircraft's orientation is crucial during flight, as it helps pilots maintain proper control and prevent situations such as unintentional stalls or loss of control due to incorrect pitch or bank angles. A correctly functioning attitude indicator allows pilots to fly safely in various conditions, enhancing situational awareness and flight safety.