Definition
A nationwide FAA communications network that handles the routing and exchange of aeronautical data — including flight plans, NOTAMs, weather, and other operational messages — between FAA facilities and authorized users.
Plain English
The FAA's behind-the-scenes data delivery system. It moves flight plans, NOTAMs, and weather information between the computers and facilities that air traffic services depend on.
Context Anchor
You may see NADIN in FAA acronym lists, older FAA references, or descriptions of how flight, weather, and notice information is distributed through the aviation system.
Derivation
Data interchange' simply means the back-and-forth exchange of information between computer systems. 'Network' refers to the connected pathways that carry it. Put together, NADIN is the FAA's nationwide pipe for swapping aviation data.
Why Pilots Care
Pilots rely on the data flowing through this network for accurate preflight briefings and in-flight updates.
Intuition Check
NADIN is not a radio, cockpit display, or piece of aircraft equipment. It is a ground-based FAA data network that helps move aviation information between systems.
Example Sentence 1
The flight plan was transmitted through NADIN to the appropriate ATC facilities before departure.
Example Sentence 2
Flight plans submitted electronically are routed through NADIN to the appropriate air traffic facilities.