What does the heading indicator display?

• A. The aircraft's current altitude
• B. The aircraft's current magnetic heading in degrees
• C. The rate of climb or descent
• D. The speed of the aircraft

Answer: (B)

The heading indicator is a crucial instrument in an aircraft's cockpit, designed to show the aircraft’s current magnetic heading in degrees. This is essential for navigation, as it helps pilots understand their orientation relative to magnetic north. By providing a clear reading of the aircraft's direction, pilots can make informed decisions about course adjustments, alignments for landing, and navigation.

The heading is displayed in degrees from 0 to 360, with north represented as 0° or 360°, east as 90°, south as 180°, and west as 270°. An accurate reading of the heading allows for effective navigation and aids in maintaining the desired flight path, especially in conditions where visual cues may be limited.

In contrast, altitude, rate of climb or descent, and speed are indicated by other instruments, such as the altimeter, vertical speed indicator, and airspeed indicator, respectively. These instruments serve different functions and are vital for various aspects of flight management, but they do not provide information about the aircraft's heading. Therefore, the correct understanding of the heading indicator’s role is fundamental for any aviator.