Definition
Magnetic bearings extending outward from a VOR (Very High Frequency Omnidirectional Range) ground station. A VOR transmits 360 radials, one for each degree of the compass, allowing a pilot to identify their bearing from the station and to track inbound or outbound along a chosen radial.
Plain English
Imaginary lines that spread out from a VOR station like spokes from a wheel hub, one for every degree of the compass. Each line is named by its compass direction from the station, so the line going due east from the station is the 090 radial.
Context Anchor
Seen on IFR enroute charts, instrument procedures, and VOR navigation displays, especially when identifying airways, fixes, and courses near a VOR station.
Derivation
Radial comes from the Latin radius, meaning 'spoke of a wheel' or 'ray.' That's exactly what a VOR radial is — one of 360 rays extending outward from the station, like spokes from a hub.
Why Pilots Care
Radials allow precise navigation along established airways, accurate position reporting, and safe routing in instrument conditions.
Analogy
Think of a VOR station as the hub of a bicycle wheel. The radials are like spokes extending outward from the hub in every direction.
Intuition Check
Do not assume a VOR radial means the direction you are flying. A radial is the direction from the VOR station to your position or intended line.
Example Sentence 1
ATC cleared us to intercept the 045 radial and track it outbound to the next fix.
Example Sentence 2
The pilot identified the fix by crossing the 180 radial of the first VOR simultaneously with the 270 radial of the second VOR.