What is the purpose of a VOR (VHF Omnidirectional Range)?

The purpose of a VOR (VHF Omnidirectional Range) is to provide pilots with accurate radio navigation signals that facilitate course maintenance during flight. VOR is a ground-based navigation aid that emits a VHF radio signal, allowing pilots to determine their position and track courses using an onboard VOR receiver. This system works by transmitting a signal that pilots can use to identify their heading relative to the VOR station, which helps them maintain a set course accurately.

In aviation, course maintenance is crucial for safely navigating from one point to another, and the VOR's ability to provide precise directional information makes it an essential tool for pilots, especially during instrument flight when visibility may be limited. It's widely used in both commercial and general aviation for en route navigation as well as during approach and departure procedures.