Definition
The system of ground-based VOR (VHF Omnidirectional Range) navigation stations distributed across the country, together with the published airways, routes, and instrument procedures that connect them. It forms the traditional backbone of radio-based navigation in the United States, allowing pilots to fly defined routes between stations using cockpit VOR receivers.
Plain English
It is the nationwide collection of VOR ground stations and the airways that link them, used by pilots to navigate from place to place using radio signals.
Context Anchor
Seen in instrument approach and navigation discussions, especially when comparing satellite-based navigation with older ground-based navigation systems.
Derivation
VOR stands for VHF Omnidirectional Range — a radio station that broadcasts signals in every direction (omni = all, directional = with direction). 'Network' is used in its ordinary sense: a connected set of stations working together as a system.
Why Pilots Care
Provides reliable navigation independent of satellite systems and supports many legacy instrument procedures.
Intuition Check
Do not think of a VOR network as an internet-style network inside the airplane. Here, “network” means many separate ground radio stations that together provide navigation coverage over a large area.
Example Sentence 1
Although GPS is now the primary means of navigation for most flights, the VOR network still provides a reliable backup when satellite signals are unavailable.
Example Sentence 2
Many older approach procedures still rely on the VOR network for lateral guidance when GPS is not authorized.