Civil aviation dictionary
Aviation glossary
Terms, abbreviations and procedures explained without unnecessary jargon, with English names and clear definitions.
- Total entries
- 2480
- Terms
- 435
- Abbreviations
- 2045
N
- Abbreviationno RAWIN obs., communications out
RACO stands for no RAWIN obs., communications out in FAA terminology.
- Abbreviationno RAWIN obs., high and gusty winds
RAWI stands for no RAWIN obs., high and gusty winds in FAA terminology.
- Abbreviationno RAWIN obs., no gas available
RAHE stands for no RAWIN obs., no gas available in FAA terminology.
- Abbreviationno RAWIN obs., unfavorable weather
RAWE stands for no RAWIN obs., unfavorable weather in FAA terminology.
- Abbreviationno record
NOREC stands for no record in FAA terminology.
- Abbreviationno significant change
NOSIG stands for no significant change in FAA terminology.
- Abbreviationno significant cloud
NSC stands for no significant cloud in FAA terminology.
- Abbreviationno significant weather
NSW stands for no significant weather in FAA terminology.
- Abbreviationno small craft or storm warning are being displayed
NSCSWD stands for no small craft or storm warning are being displayed in FAA terminology.
- Abbreviationno special observations taken (weather reports only)
NOSPL stands for no special observations taken (weather reports only) in FAA terminology.
- Abbreviationno traffic reported
NTRP stands for no traffic reported in FAA terminology.
- AbbreviationNon-Directional Beacon
A non-directional ground radio beacon received by airborne direction-finding equipment.
- AbbreviationNon-primary Airport Entitlement
NPE stands for Non-primary Airport Entitlement in FAA terminology.
- Abbreviationnon-RVSM capable flight
NONRVSM stands for non-RVSM capable flight in FAA terminology.
- Radio communications and ATCNONAPPROACH CONTROL TOWER
Author‐izes aircraft to land or takeoff at the airport controlled by the tower or to transit the Class D airspace.
- Abbreviationnonprecision instrument
NPI stands for nonprecision instrument in FAA terminology.
- AbbreviationNORAD Region Operations Control Center
ROCC stands for NORAD Region Operations Control Center in FAA terminology.
- AbbreviationNORAD Sector Operations Control Center
SOCC stands for NORAD Sector Operations Control Center in FAA terminology.
- AbbreviationNorth American Aerospace Defense Command
NORAD stands for North American Aerospace Defense Command in FAA terminology.
- OperationsNORTH AMERICAN ROUTE
A numerically coded route preplanned over existing airway and route systems to and from specific coastal fixes serving the North Atlantic.
- OperationsNORTH ATLANTIC HIGH LEVEL AIRSPACE (NAT HLA)
That volume of airspace (as defined in ICAO Document 7030) between FL 285 and FL 420 within the Oceanic Control Areas of Bodo Oceanic, Gander Oceanic, New York Oceanic East, Reykjavik, Santa Maria, and Shanwick, excluding the Shannon and Brest Ocean Transition Areas.
- Abbreviationnorth-northeastern (weather reports only)
NNERN stands for north-northeastern (weather reports only) in FAA terminology.
- Abbreviationnorth-northwestern (weather reports only)
NNWRN stands for north-northwestern (weather reports only) in FAA terminology.
- Abbreviationnortheasterly (weather reports only)
NELY stands for northeasterly (weather reports only) in FAA terminology.