What is the primary purpose of an aircraft's VOR system?

The primary purpose of an aircraft's VOR (VHF Omnidirectional Range) system is to provide navigation information. The VOR system is a ground-based radio navigation aid that allows pilots to determine their position and stay oriented while flying. It emits signals that aircraft can pick up to determine the direction (bearing) from the station, which is crucial for navigation.

Pilots use VOR signals to navigate along predetermined airways, to find their way to airports, and to perform instrument approaches. This system is particularly important for maintaining situational awareness in complex airspace as well as for executing precise navigation during various phases of flight, especially in poor visibility conditions.

This system does not track weather patterns, improve in-flight communication, or monitor aircraft speed, which are the focus of other types of equipment and technology.