What is the common type of navigation aid that provides heading information?

• A. The compass
• B. The radio altimeter
• C. The VOR
• D. The DME

Answer: (A)

The common type of navigation aid that provides heading information is the compass. A compass is a fundamental instrument in aviation that displays the aircraft's heading relative to magnetic North. It operates on the principle of a magnetized needle that aligns itself with the Earth's magnetic field. This allows pilots to determine the direction in which the aircraft is pointed, enabling them to navigate effectively, especially in visual flight or when navigating by landmarks.

While the radio altimeter, VOR (VHF Omnidirectional Range), and DME (Distance Measuring Equipment) are all essential navigation aids, they serve different functions. The radio altimeter provides information about the altitude of the aircraft above the ground. The VOR is a ground-based radio navigation system that allows pilots to determine their position and track relative to the station, providing only bearing information rather than heading. Lastly, DME measures the distance between the aircraft and a ground station, aiding in navigation but not providing heading information. Thus, the compass remains the primary instrument for heading information.