What is the function of a VOR in navigation?

The function of a VOR (VHF Omnidirectional Range) in navigation is to provide bearing information to pilots for navigation. A VOR is a type of radio navigation system that enables aircraft to determine their position in relation to the VOR station. By using a VOR, pilots can obtain precise bearing information, which assists them in navigating along specific courses or radials.

This system works by transmitting a signal, which a pilot's aircraft receiver picks up. The receiver can interpret the directional information and display it to the pilot, allowing them to gauge their heading relative to the VOR station. This is crucial for maintaining course and safely navigating from one point to another.

While altitude information, emergency landing guidance, and weather changes are vital aspects of aviation safety, they are not functions of a VOR. Altitude information is typically provided by altimeters and air traffic control, emergency landing guidance comes from various resources including airport charts and controllers, and weather changes are monitored using separate meteorological systems. The primary and defining role of a VOR remains its capability to offer bearing information to enhance navigation accuracy.