Sheffield School of Aeronautics
Aircraft Dispatcher
Aviation Abbreviations
-click on a letter in the INDEX below to scroll quickly-
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
2-1 11/20/01
Note – The abbreviations within this document are from various official publications as well as our experience. They are
intended to be used for guidance only. The user understands that these abbreviations may be updated or outdated
occasionally. Sheffield School of Aeronautics will not be held responsible for the misuse or misinterpretation of any data
within these attached pages.
A
A/A air to air
AADC approach & departure control
AAF Army air field
AAL Above Aerodrome Level
AAS airport advisory service
AAWU Alaskan Aviation Weather Unit
AB air base
ABM abeam
ABN aerodrome beacon
ABNDT abundant
ABNML abnormal
ABT about
ABV above
A/C approach control
AC altocumulus, aircraft, air
conditioning, Convective
Outlook, advisory circular, air
carrier
ACA Arctic Control Area, approach
control area
ACARS Aircraft Communication
Addressing & Reporting
System
ACAS Airborne Collision Avoidance
System
ACC altocumulus castellanus, area
control center
ACCUM accumulate
ACDNT accident
ACFT aircraft
ACLT accelerate
ACLTD accelerated
ACLTG accelerating
ACLTS accelerates
ACN aircraft classification number
ACPY accompany
ACR air carrier
ACRS across
ACSL altocumulus standing lenticular
ACT Active Control Technology
ACTV active
ACTVT activate
ACTVTY activity
ACYC anticyclonic
A/D Analog to Digital
AD Airworthiness Directive,
aerodrome
ADA Advisory Airspace (area)
ADC Air Data Computer
ADF Automatic Direction Finder,
Airline Dispatcher Federation
ADI Attitude Direction Indicator
ADIRS Air Data/Internal Reference
System
ADIZ air defense identification zone
ADJ adjacent
ADL additional
ADQT adequate
ADQTLY adequately
ADR advisory route
ADRNDCK Adirondack
ADSU Air Data Sensor Unit
ADT Approved Departure Time
ADU Aircraft Display Unit
ADV advisory area
ADVCT advect
ADVCTD advected
ADVCTG advecting
ADVCTN advection
ADVCTS advects
ADVN advance
ADVNG advancing
ADVY advisory
ADVYS advisories
ADZ advise
ADZD advised
AEIS aeronautical en route
information service
AER approach end (of) runway
AERADIO air radio
AERO aerodrome
AF AUX Air Force auxiliary field
AFB Air Force base
AFC Automatic Frequency Control
AFCT affect
AFCTD affected
AFCTG affecting
Abbreviations
2-2
AFCS Automatic Flight Control
System
AFD airport/facility directory
AFDK after dark
AFIS Aerodrome Flight
Information Service
AFISO Aerodrome Flight
Information Service Officer
AFN American Forces network
AFOS automated field operations
system
AFRS armed forces radio stations
AFS Automatic Flight System, Air
Force station
AFSS automated Flight Service Station
AFTN Aeronautical Fixed Telecom
Network
AFSS automated flight service station
AFT after
A/G air-to-ground
AGC Automatic Gain Control
AGIL Above Ground Level
AGL above ground level
AGN again
AGNIS azimuth guidance nose-in
-stand
AGRD agreed
AGRS agrees
AGRMT agreement
AH alert height, artificial horizon
AHD ahead
AHIRS Attitude Heading and
Reference System
AHP Army heliport
AIAA Area of Intense Aerial
Activity
AIC Aeronautical Information
Circular
AIDS Airborne Integrated Data
System
AIM Aeronautical Information
Manual
AINS Area Inertial Navigation System
AIP Aeronautical Information
Publication
AIRAC aeronautical information
regulation and control
AIREP Airborne Weather Report
AIS Aeronautical Information
Service
AK Alaska
ALA authorized landing area
AL Alabama
ALF aloft, auxiliary landing field
ALG along
ALGHNY Allegheny
ALPA Airline Pilots Association
ALQDS all quadrants
ALS approach light system
ALSTG altimeter setting
ALT altitude, altimeter
ALTA Alberta
ALTHO although
ALTM altimeter
ALTN alternate
ALTNLY alternately
ALUTN Aleutian
AM Amplitude Modulation
AMA area minimum altitude
AMC Airspace Management Cell
AMD(T) amend(ment)
AME Aviation Medical Examiner
AMGR Airport manager
AMOS Automatic Meteorological
Observation system
AMSL above mean sea level
AMP amplify
AMPG amplifying
AMPLTD amplitude
AMS air mass
AMT amount
ANGB Air National Guard Base
ANLYS analysis
ANO Air Navigation Order
ANS answer
AOA at or above
AOB at or below
AOE airport/aerodrome of entry
AOG Aircraft on Ground
AOM Aircraft Operating Manual
AOR area of responsibility
A/P Autopilot
AP airport, anomalous propagation,
Air Publication
APAPI abbreviated precision approach
path indicator
APC area positive control
APCH(G) approach(ing)
APCHS approaches
APCU Auxiliary Power Control Unit
APL airport lighting
APLCN(S) Appalachian(s)
AP LGT airport lighting
APP approach control
APPR(G) appear(ing)
APPRS appears
APRNT(LY) apparent(ly)
Abbreviations
2-3
APRX(LY) approximate(ly)
APT airport
APU Auxiliary Power Unit
AQP Advanced Qualification
Program
AR Arkansas
ARB air reserve base
ARFF aircraft rescue & fire fighting
ARINC Aeronautical Radio
Incorporated
ARL Air Resourses Lab
ARND around
ARO ATS reporting office
ARPT airport
ARR arrive, arrival
ARSR air route surveillance radar
ARTAS ATC Radar and Tracker
Service
ARTCC air route traffic control center
AS altostratus
ASAP as soon as possible
ASDA accelerate stop distance
available
ASDE airport surface detection
equipment
ASI Aviation/Airline Safety
Inspector, Airspeed Indicator
ASIR Area Surveillance Radar
ASL above sea level
ASMD as amended
ASOS Automated Surface
Observation System
ASPH asphalt
ASR airport surveillance radar
ASRS Aviation Safety Reporting
System
ASSOCD associated
ASSOCN association
A/T Autothrottle
ATA Air Transport Association of
America, actual time (of) arrival
ATC Air Traffic Control
ATCAA Air Traffic Control assigned
airspace
ATCC Air Traffic Control Center
ATCEU Air Traffic Control Evaluation
Unit
ATCRBS ATC radar beacon system
ATCT air traffic control tower
ATD Aviation Training Device, actual
time (of) departure
ATF aerodrome traffic frequency
ATFM Air Traffic Flow Management
ATG Approval Test Guide
ATIS Automatic terminal
information service
ATLC Atlantic
ATM Air Traffic Management
ATM Acceptance Test Manuals
ATPL Airline Transport Pilots
Licence
ATR Airline Transport Rating
ATS Air Traffic Services
ATSU Air Traffic Service Unit
ATTM at this time
ATTN attention
ATZ aerodrome traffic zone
AUTH authorized, authority
AUTOB Automatic Weather Reporting
system
AUW all-up weight
AUX auxiliary
AVBL available
AVG average
AVN aviation model
AWC Aviation Weather Center
AWIB aerodrome weather information
broadcast
AWOS Automated Weather
Observing System
AWT awaiting
AWU adjusted weight units
AWY Airway
AZ Arizona
AZM azimuth
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Abbreviations
2-4
B
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BA braking action
BACLIN Baroclinic
BAJA Baja, California
BATROP barotropic
BC back course, patchy, British
Columbia
BCH beach
BCKG backing
BCM become, back course marker
BCMG becoming
BCMS becomes
BCN beacon
BCOB broken clouds or better
BCST broadcast
BDA Bermuda
BDR border
BDRY boundary
BERM snowbank/s containing
earth/gravel
BFDK before dark
BFR before
BGN begin
BGNG beginning
BGNS begins
BHND behind
BINOVC breaks in overcast
BKN broken
BLD build
BLDG building
BLDS builds
BLDU blowing dust
BLDUP buildup
BLKHLS Black Hills
BLKT blanket
BLKTG blanketing
BLKTS blankets
BLO below clouds
BLPY blowing spray
BLSA blowing sand
BLSN blowing snow
BLZD blizzard
BLW below
BM back marker
BND bound
BNDRY boundary
BNDRYS boundaries
BNTH beneath
BOOTHEEL Bootheel
BOW Basic Operating Weight
BR mist, branch
BRAF braking action fair
BRAG braking action good
BRAN braking action nil
BRAP braking action poor
BRF brief
BRG bearing, branching
BRK break
BRKG breaking
BRKHIC breaks in higher clouds
BRKS breaks
BRKSHR Berkshire
BRM barometer
B-RNAV basic RNAV
BRS branches
BS broadcast station, also a slang
term used during
disagreements;)
BTWN between
BYD beyond
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Abbreviations
2-5
C
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C Celsius, Ceiling (@Sheffield),
ATC IFR flight plan clearance
delivery frequency
CA California, clear above
CAA cold air convection, Civil
Aviation Authority
CAAS Class A airspace
CAB Civil Aeronautics Board
CADIZ Canadian Air Defense
Identification Zone
CARIB Caribbean
CARS Community aerodrome radio
station
CAS Calibrated airspeed
CASCDS Cascades
CAT clear air turbulence, category
CAVOK Ceiling and Visibility OK
CAVU Ceiling And Visibility
Unrestricted (Unlimited)
CB cumulonimbus
CBAS Class B airspace
CBMAM cumulonimbus mamma(tus)
CBSA Class B surface area
CC cirrocumulus
CCA Computer Controlled Aircraft
CCAS Class C airspace
CCF Central Control Facility
(Part of ATCEU)
CCLDS clear of clouds
CCLKWS counterclockwise
CCSA Class C surface area
CCSL cirrocumulus standing lenticular
CD clearance delivery
CDAS Class D airspace
CDFNT(L) cold front(al)
CDI course deviation indicator
CDR conditional route
CDSA Class D surface area
CDT central daylight time
CEAC Committee for European
Airspace Co-ordination
CEIL ceiling
CERAP combined center/radar approach
control
CEAS Class E airspace
CESA Class E surface area
CFA controlled firing area
CFMU Central Flow Management
Unit
CFP cold front passage
CFR Code of Federal Regulations
CG cloud to ground, center of
gravity
CGAS Class G airspace, Coast Guard
Air Station
CGL circling guidance lights
CH channel, critical height
CHC chance
CHCS chances
CHG change
CHGD changed
CHGG changing
CHGS changes
CHSPK Chesapeake
CI cirrus
CIFIT Controlled Flight Into Terrain
CIG ceiling
CIGS ceilings
CLD cloud
CLDNS cloudiness
CLDS clouds
CLKWS clockwise
CLNC clearance
CLR clear
CLRG clearing
CLRS clears
CLSD closed
CMB climb
CMNPS Canadian Minimum Navigation
Performance Specification
CMPLX complex
CMSN(D) commission(ed)
CNCL cancel
CNCLD canceled
CNCLG canceling
CNCLS cancels
CNDN condition, Canadian
CNF Computer Navigation Fix
CNFDC confidence
CNL cancel
CNTR center
CNTRD centered
CNTRL central
CNTRLN centerline
CNTY County
CNTYS Counties
CNVG converge
CNVGG converging
CNVGNC convergence
CNVTN convection
CNVTV convective
CNVTVLY convectively
CO Colorado, county
Abbreviations
2-6
COM communications
COMLO compass locator
COMM communications
COMPAR compare
COMPR compare
COMPRD compared
COMPRG comparing
COMPRS compares
COMSND commissioned
CONC concrete
COND conditions
CONFDC confidence
CONS continuous
CONT continuous
CONTD continued
CONTDVD Continental Divide
CONTG continuing
CONTLY continually
CONTRAILS condensation trails
CONTS continues
CONUS Continental U.S.
COORD coordinate(s)
COP change over point
COPS Common Operational
Performance Specification
COR correction
CORR corridor
COT at the coast
CP command post
CPBL capable
CPD coupled
Cpt Clearance prior to taxi
CPTY capacity
CRC circle
CRIT critical
CRLC circulate
CRLCN circulation
CRNR corner
CRNRS corners
CRS course
CRZ cruise
CS cirrostratus
CSD Constant Speed Drive
CSDR consider
CSDRBL considerable
CST Central Standard Time, coast
CSTL coastal
CT Connecticut
CTA Control Area
CTAF common traffic advisory
frequency
CTC contact
CTGY category
CTL control
CTLZ control zone
CTR Control Zone
CTS Computerised Test System
CTSKLS Catskills
CU Cumulus
CUFRA Cumulus Fractus
CVFR controlled VFR
CVR Cockpit Voice Recorder, cover
CVRD covered
CVRG covering
CVRS covers
CWSU Center Weather Service Units
CYC cyclonic
CYCLGN cyclogenesis
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Abbreviations
2-7
D
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D day, plotted direct route
DA Decision altitude
DABRK daybreak
DADC Digital Air Data Computer
DALGT daylight
D-ATIS digital ATIS
DBL double
DC District of Columbia
DCMS decommission
DCMSN(D) decommission(ed)
DCR decrease
DCRG decreasing
DCRGLY decreasingly
DCRS decreases
DCT direct
DDM Dispatch Deviation Manual
DE Delaware
DECMSND decommissioned
DEG degree
DEGS degrees
DELMARVA Delaware-Maryland-Virginia
DEP depart/departure, departure
control
DEPARTURE departure procedure
DEPT department
DER departure end (of) runway
DEWIZ distant early warning
identification zone
DF Direction Finder
DFCLT difficult
DFCLTY difficulty
DFNT definite
DFNTLY definitely
DFRS differs
DFUS diffuse
DGNL diagonal
DGNLLY diagonally
DH Decision Height
DIGG digging
DIR direction
DISABLD disabled
DISC discontinue
DISCD discontinued
DISCG discontinuing
DISPL THR displaced threshold
DISRE disregard
DISRED disregarded
DISREG disregarding
DIST distance
DKTS Dakotas
DLA delay
DLAD delayed
DLT delete
DLTD deleted
DLTG deleting
DLY daily
DME Distance Measuring Equipment
DMG damage
DMGD damaged
DMGG damaging
DMNT dominant
DMSH diminish
DMSHD diminished
DMSHG diminishing
DMSHS diminishes
DMSTN demonstration
DNS dense
DNSLP downslope
DNSTRM downstream
DNWND downwind
DOD Department of Defense
DOM domestic
DOT Department of Transportation
DP departure procedure, dewpoint,
deep
DPCR departure procedure
DPND deepened
DPNG deepening
DPNS deepens
DPR deeper
DPTH depth
DR Dead Reckoning
DRCT direct
DRFT/
DRFTD Drift/drifted snowbank/s caused
by wind action
DRIFT drift
DRFTD drifted
DRFTG drifting
DRFTS drifts
DRSN low drifting snow
DRZL drizzle
DS duststorm
DSCNT descent
DSIPT dissipate
DSIPTD dissipated
DSIPTG dissipating
DSIPTN dissipation
DSIPTS dissipates
DSND descend
DSNDG descending
DSNDS descends
DSNT distant
DSPLCD displaced
Abbreviations
2-8
DSPN dissipation
DSTBLZ destabilize
DSTBLZD destabilized
DSTBLZG destabilizing
DSTBLZS destabilizes
DSTBLZN destabilization
DSTC distance
DTRT deteriorate
DTRTD deteriorated
DTRTG deteriorating
DTRTS deteriorates
DU dust
DURC during climb
DURD during descent
DURG during
DURGC during climb
DURGD during descent
DURN duration
DVLP develop
DVLPD developed
DVLPG developing
DVLPMT development
DVLPS develops
DVRG diverge
DVRGG diverging
DVRGNC divergence
DVRGS diverges
DVV downward vertical velocity
DWNDFTS downdrafts
DWPNT dew point
DWPNTS dew points
DX duplex
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Abbreviations
2-9
E
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E East or Eastern
EAT expected approach time
EAS equivalent airspeed
EB Eastbound
EBND Eastbound
ECOMS Jeppesen explanation of
common minimum
specifications
EDT eastern daylight time
EET estimated elapsed time
EFAS en route flight advisory service
EFATO Engine Failure at Take-Off
EFCT effect
EFF effective
EGPWS Enhanced Ground Proximity
Warning System
ELEV elevation
ELNGT Elongate
ELNGTD Elongated
ELSW Elsewhere
ELT emergency locator
transmitter
EMBDD Embedded
EMERG Emergency
ENCTR Encounter
ENDG Ending
ENE East-northeast
ENELY East-northeasterly
ENERN East-northeastern
ENEWD East-northeastward
ENG engine
ENHNC enhance
ENHNCD enhanced
ENHNCG enhancing
ENFHNCS enhances
ENHNCMNT enhancement
ENRT en route
ENTR entire
EOBT estimated off block time
EPR Exhaust Pressure Ratio
ER Extended Range
ERA European Regional Airlines
Association
ERN Eastern
ERY Early
ERYR Earlier
ESE East-southeast
ESELY East-southeasterly
ESERN East-southeastem
ESEWD East-southeastward
ESNTL Essential
ESTAB Establish
EST Estimate (ing), Eastern Standard
Time
ESTS estimates
ETA Estimated time of arrival or ETA
model
ETC Et cetera
ETD estimated time of
departure
ETE estimated time en route
ETIM Elapsed time
ETO Estimated Time Over
ETOPS Extended-Range Twin
Engine Operations
ETP Equal Time Point or CP
EU European Union
EVE Evening
EWD Eastward
EXCLV Exclusive
EXCLVLY Exclusively
EXC(P) Except
EXP expect (ed) (ing)
EXPC Expect
EXPCD Expected
EXPCG Expecting
EXTD Extend
EXTDD Extended
EXTDG Extending
EXTDS Extends
EXTN Extension
EXTRAP Extrapolate
EXTRAPD Extrapolated
EXTRM Extreme
EXTRMLY Extremely
EXTSV Extensive
EXTV extensive
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Abbreviations
2-10
F
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F Fahrenheit
FA aviation area forecast, final
approach
FAA Federal Aviation
Administration
FAC facility
FAF final approach fix
FAH Fahrenheit
FAM familiar
FANS Future Air Navigation System
FAP final approach point
FAR Federal Aviation Regulation/s
FC funnel cloud
FCC Federal Communications
Commission
FCP final control point
FCST forecast
FCSTD forecasted
FCSTG forecasting
FCSTR forecaster
FCSTS forecasts
F/D Flight Director
FDC flight data center
FDR Flight Data Recorder
FE Flight Envelope
F/E Flight Engineer
FG fog
FIC flight information center
FIG figure
FILG filling
FI/P flight information/
permanent nature
FIS flight information service
FI/T flight information/
temporary nature
FIR flight information region
FIRAV first available
FIS Flight Information Service
FL Florida, flight level
FLD field
FLG falling, flashing
FLRY flurry
FLRYS flurries
FLT flight
FLW follow
FLWG following
FM from, frequency modulation,
fan marker
FMC Flight Management
Computer
FMGS Flight Management Guidance
System
FMS Flight Management System
FMT format
FNA final approach
FNCTN function
FNT front
FNTL frontal
FNTGNS frontogenesis
FNTLYS frontolysis
FNTS fronts
F/O First Officer
FOB fuel on board
FORNN forenoon
FP flight plan
FPL Flight Plan
FPM feet per minute
FQT frequent
FQTLY frequently
FR fuel remaining
FREQ frequency
FRH fly runway heading
FRM form
FRMG forming
FRMN formation
FROPA frontal passage
FROSFC frontal surface
FRNZ SLR frozen slush on runway
FRST frost
FRWF forecast wind factor
FRZ freeze
FRZG freezing
FRZLVL freezing level
FRZN frozen
FRZN SLR frozen slush on runway/s
FSDO Flight Standards District
Office
FSS flight service station
FT feet
FTL Flight Time Limitations
FTHR further
FTS flexible track system
FU fuel used, smoke
FUDEP smoke layer estimated -
depth in feet
FULYR smoke layer
FUOCTY smoke over city
FV flight visibility
FVRBL favorable
FWD forward
FYI for your information
FZ freezing
FZDZ freezing drizzle
FZRA freezing rain
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Abbreviations
2-11
G
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G gust/s/ing, Guards only (radio
frequencies)
GA Georgia, general aviation
GC ground control
GCA ground controlled approach
(radar)
GCO ground communications outlet
GEN general
GENLY generally
GEO geographic or true
GEOREF geographical reference
GF ground fog
GICG glaze icing
GLF gulf
GLFALSK Gulf of Alaska
GLFCAL Gulf of California
GLFMEX Gulf of Mexico
GLFSTLAWRGulf of St. Lawrence
GLONASS Global Orbiting Navigation
Satellite System
GLS GNSS Landing System
GMT Greenwich Mean Time
GND ground (land or water surface of
the Earth), ground control
GNLY generally
GNS Global Navigation System
GNSS Global Navigation Satellite
System
GOVT government
G/P Glide Path (equates to glide
slope)
GPWC Ground Proximity Warning
Computer
GPWS Ground Proximity Warning
System
GPS global positioning system
GR hail (>1/4 inch)
GRAD gradient
GRVL gravel
GRDL gradual
GRDLY gradually
GRP group
GRT Great
GRTLY greatly
GRTLKS Great Lakes
GS glide slope, small hail/snow
pellets, ground speed
GSTS gusts
GSTY gusty
GTR greater
GTS Global Telecommunication
System
GV ground visibility
GWT gross weight
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Abbreviations
2-12
H
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H non-directional radio beacon,
high altitude
H24 24 hour service
HAA height above airport
HAS height above site
HAT height above touchdown
HAZ hazard
HC critical height
HDFRZ hard freeze
HDG Heading
HDSVLY Hudson Valley
HDWND headwind
HEL helicopter
HELI heliport
HF high frequency (3-30 MHz)
HGT height
HI high (altitude), high intensity
(lights), Hawaii
HIALS high intensity approach light
system
HIER higher
HIFOR high-level forecast
HIRL high intensity runway lights
HIWAS hazardous inflight weather
advisory service
HJ sunrise to sunset
HLDG holding
HLF half
HLSTO hailstones
HLTP hilltop
HN sunset to sunrise
HND hundred
HO by operational requirements
HOL holiday
HP holding pattern
hPA hectopascal (1 hPa = 1 mb)
HPC Hydrometeorological Prediction
Center
HR hour(s)
HRLY hourly
HRS hours
HRZN horizon
HS during hours of scheduled
operations
HSI Horizontal Situation Indicator
HST high speed taxi-way turn-off
HTG heating
HUD Head-Up Display
HURCN hurricane
HUREP hurricane report
HV have
HVY heavy
HVYR heavier
HVYST heaviest
HW headwind
HWVR however
HWY highway
HZ haze, Hertz
HZDEP haze layer estimated-
depth in feet
HZLYR haze layer
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Abb
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