Plain English Meaning

A radio beacon on the ground that lets a pilot fly along a chosen line in any direction outward from the station. The cockpit instrument shows whether the aircraft is on that line, to the left of it, or to the right of it.

Full Definition

A ground-based radio navigation aid that transmits a signal in the very high frequency band (108.0–117.95 MHz), allowing a properly equipped aircraft to determine its bearing to or from the station along any of 360 selectable courses, called radials. The aircraft's VOR receiver compares two signals broadcast by the station and displays the aircraft's position to a pilot-selected on a ().