What is the primary purpose of the compass in an aircraft?

The primary purpose of the compass in an aircraft is to provide directional guidance. This is crucial for navigation, allowing pilots to determine their heading or the direction the aircraft is facing relative to magnetic north. Knowing this direction is essential for navigating from one point to another, particularly in visual flight rules (VFR) conditions, where pilots need to maintain situational awareness of their location.

While altitude measurement, ground speed calculation, and fuel consumption are important for safe flight operations, they are not functions of the compass. Altimeters measure altitude, airspeed indicators help calculate ground speed, and fuel gauges monitor fuel consumption. Therefore, the compass's role is distinct and vital for ensuring safe and accurate navigation in flight.