What is the purpose of a magnetic compass in aviation?

The purpose of a magnetic compass in aviation is to provide the pilot with the aircraft's heading relative to magnetic north. The compass is a fundamental navigation instrument that indicates the aircraft's orientation in relation to the Earth's magnetic field. By showing the heading, pilots can determine directional flight paths and make necessary adjustments while navigating, especially in situations where other navigation aids may not be available or when flying VFR (Visual Flight Rules).

This instrument is crucial for maintaining course, avoiding obstacles, and ensuring that the flight proceeds in a controlled manner. Understanding the heading information aids in both visual navigation and in conjunction with other navigational systems for effective route management. The magnetic compass remains a reliable tool, as it operates independently of electronic systems and can function even when power is lost, making it a vital element of any pilot's toolkit.