Pilot/Controller Glossary
Glossary of terms used in communication between pilots and air traffic controllers
📢 This glossary was originally created to be a dynamic version of the Pilot/Controller Glossary published by the FAA. Because the FAA now maintains its own dynamic version of the Pilot/Controller Glossary, this version is no longer updated.
- UHF
- ULTRAHIGH FREQUENCY (UHF)
- ULTRALIGHT VEHICLE
- UNABLE
- UNASSOCIATED
- UNCONTROLLED AIRSPACE
- UNDER THE HOOD
- UNFROZEN
- UNICOM
- UNMANNED AIRCRAFT (UA)
- UNMANNED AIRCRAFT SYSTEM (UAS)
- UNPUBLISHED ROUTE
- UNRELIABLE (GPS/WAAS)
- UNSERVICEABLE (U/S)
- UPWIND LEG
- URGENCY
- URGENCY [ICAO]
- USAFIB