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1
180-degree turn


A
AACAAIAAR
AbeamAbortAbove Ground Level
Above mean sea levelAbradeAbsolute
Absolute altitudeAbsolute ceilingAbsolute humidity
ACARSACASACC
AccelerateAccelerated stallAccelerator
AccelerometerAccumulaAccuracy
AcetoneAcknowledgeACLT
ACMIAcrobatic flightAcrobatics
ADASADCAdcock range
Additional servicesADFAdhesion
AdhesiveADIADIZ
Adjustable stabilizerAdministratorADS
ADTAdverse yawAdvise intentions
AdvisoryAdvisory frequencyAdvisory service
AEGAerialAerial refueling
Aerial topdressingAeroAerobatics
AerodromeAerodrome beaconAerodrome control service
Aerodrome elevationAerodynamic shapeAerodynamics
AerodyneAeroelasticityAero-engine
AerofoilAeronautAeronautical chart
AeronauticsAeroplaneAerosol
AerospaceAerostatAEW
AFBAFCSAFD
AFDSAffirmativeAFIS
AFSAFSSAfterburner
AFTNAGLAHRS
AIDAidingAileron
AileronsAIMAIP
Air ambulanceAir brakeAir charter
Air combat manoeuvringAir dataAir data computer
Air intakeAir launchAir mass
Air navigation facilityAir pocketAir route
Air route surveillance radarAir scoopAir taxi
Air trafficAir traffic clearanceAir Traffic Control
Air traffic control centerAir traffic control clearanceAir traffic control service
Air traffic controllerAir traffic serviceAirborne
Airborne delayAirbrakeAircraft
Aircraft attitudeAircraft carrierAircraft classes
Aircraft managementAircraft on groundAircraft part
Aircraft registrationAircraft reportAircraft situation display
Aircraft systemsAirfoilAirfoil shape
AirfoilsAirframeAirline
Airline designatorAirlinerAirman
AirmanshipAIRMETAirplane
AirportAirport acceptance rateAirport advisory area
Airport codeAirport codesAirport elevation
Airport lightingAirport marking aidsAirport of entry
Airport reference pointAirport reservation officeAirport surveillance radar
AirscrewAirshipAirspeed
Airspeed indicatorAirstartAirstrip
AirwayAirworthiness directiveAirworthy
AISAITAlcohol
Alerting serviceAlightingAlloy
All-weather fighterALPALS
Alternate aerodromeAlternate airportAltimeter
Altimeter settingAltitudeAltitude readout
Altitude reservationAltitude restrictionALTRV
AMASSAmbiguityAME
AMLCDAmphibianANC
And avoidAnemometerANG
Angle of attackAngle of incidenceAngle of roll
Angle of sideslipAnhedralAnnual
AntennaAnticycloneAOA
AOGAperiodicAPEX
Approach beaconApproach clearanceApproach control
Approach control facilityApproach control serviceApproach gate
Approach sequenceApproach speedAPR
ApronAPSAPU
Area control centerArea navigationARF
ARFFARINCARINC 575
ARINC 743AROARP
Arrester hookArresting gearArresting system
Arrival aircraft intervalArrival delayArrival time
ARSAARSRARTCC
Articulated rotorArtificial horizonARTS
ASAASASASD
ASDAASDEASEL
ASIASMASOS
Aspect ratioASRAstrodome
Astronomical latitudeASVASW
Asymmetrical thrustATAATC
Atc advisesAtc clearsAtc instructions
Atc requestsATCAAATCO
ATCRBATCRBSATCT
ATCSCCATISATM
AtmosphereATNAtom
ATPATSAts route
AttitudeAudio panelAutogyro
AutolandAutoland approachAutomated Surface Observation System
Automatic altitude reportingAutomatic direction finderAutomatic pilot
AutopilotAutorotationAutothrottle
Aux fuelAuxiliary fuel tankAviation
Aviation maintenanceAviation regulationsAviation terms
Aviation weather serviceAviatorAvionics
AWACSAWOSAxes
Azimuth


B
BAABack courseBackfire
BackingBack-taxiBaffle
Baggage allowanceBail outBalance
Balance pointBalance tabBale out
BallastBallistic missileBallonet
BalloonBallooningBandwidth
BankBank angleBanked turn
BarnstormerBarnstormersBarograph
Barometric scaleBarrage balloonBarrel roll
BaseBase fareBase line
BASICBasic fighter maneuversBasic Six
BatchBCDBeacon
Beam widthBearingBeaufort scale
BellcrankBelow minimumsBendix
Best gliding angleBig endBiplane
BITEBlack boxBlackout dates
Blackout periodsBlade angleBlade loading
Blast fenceBleed airBleeding
BlimpBlind spotBlock flying time
Block ratesBlockedBoarding pass
BoeingBondingBooms
BoostBootsBoss
Boundary layerBoundary layer controlBoundary light
Box kiteBracingBracing wire
Brake horsepowerBraking actionBraking action advisories
BreakoutBreezeBRG
BRLBroadcastBSU
BuffetBuffetingBulkhead
BumpBumpedBumping
Bush flying


C
C of aCAACAB
CabaneCabinCabin pressurization
Caging the gyroCalculated landing timeCalibrated AirSpeed
Call for releaseCall signCall up
CalmCamberCanard
Cancellation chargesCanopyCant
CantileverCapacity-controlled faresCaptain
Captive balloonCarburetor heatCarburetor ice
Carburetor icingCardinal altitudesCARF
CarrierCarry-onCARS
CASCascadesCaster
Castoring nosewheelCATCatapult
Category iCategory iiCategory iiia
Category iiibCategory iiicCathedral
CAVOKCAVUCBI
CDRCD-ROMCDT
CDTICDUCeiling
Center controlCenter of gravityCenter-section
Centre of buoyancyCentre of gravityCentre of pressure
Centripetal forceCEQCERAP
Certificated aircraftCessna 310CFI
ChaffChandelleCharles Lindbergh
ChartCharterCharter card
Charter operatorChaseChase plane
ChassisCheck-inChine
ChinookChockChord
Chord lineCirrusCity pair
Civil twilightClass A airspaceClass B airspace
Class C airspaceClass D airspaceClass E airspace
Class G airspaceClass i navigationClass ii navigation
CLCClean configurationClear-air turbulence
ClearanceClearance limitClearance void time
ClearedCleared approachCleared as filed
Cleared for takeoffCleared to landClearway
ClimbClimb to vfrClimbout
ClinometerClosed runwayClosed traffic
CloudCloud amountCloud base
Cloud heightCloudsCLT
ClunkClutterCMU
CNSCoamingCockpit
CodesCodeshareCoin
Cold frontCollective pitch controlCollins
CollisionCOMCombi
Combustion chambersCommercial airlineCommercial aviation
Commercial loadCommissionCommon traffic advisory frequency
Companion fareCompassCompass course
Compass locatorCompass roseComposite flight plan
Compression ratioCompulsory reporting pointsCondensation
ConfirmationConflict alertConing
Connecting flightsConnecting pointConnecting-rod assembly
ConnectionConsolidatorConsolidators
Constant-speed propellerConsumptionContact approach
Contaminated runwayContinental united statesContours
Contract of carriageContrailContrails
Contra-rotating propellerControl areaControl column
Control inputsControl rodControl sector
Control surfaceControl zoneControllable pitch propeller
Controlled airspaceControlled time of arrivalController
CONUSConvectionConvective sigmet
Conventional gearConventional landing gearCoolant
Cooling dragCoordinated flightCoordinated turn
CoordinatesCorporate rateCorrection
CorrosionCoupled approachCoupon
CourseCourtesy carCowling
CrabCrab angleCrash
CRDACrewCrew Resource Management
Critical engineCritical Mach numberCross
Cross-country flyingCross-over exhaustCross-section
Crosswind componentCrosswind forceCRT
Cruciform tailCruiseCruise climb
Cruise speedCruising altitudeCruising level
Cruising speedCt messageCTA
CTAFCTASCuban 8
Cumulo-nimbusCumulusCVFR
CVRCyclesCyclic
Cyclic pitch controlCycloneCSA


D
D licenceDADCDanger area
DARDCADDM
Dead reckoningDeadheadDeadstick
DecalageDecision heightDecoder
DecorationsDe-icerDeicing fluid
Delay indefiniteDelay timeDelta wing
Density altitudeDEPDeparture control
Departure timeDepreciationDepression
DerateDeratedDesired altitude
Desired trackDestinationDetresfa
Dew pointDEWIZDf fix
DGCADGPSDiesel
Differential aileronsDigitizerDihedral
Dihedral angleDIPDirect
Direct flightDirect flightsDirection finder
Directional gyroDirectional stabilityDirigible
Disc areaDisc loadingDiscount fare
Discounted ticketsDiscrete codeDiscrete frequency
Disk loadingDisplaced thresholdDisposable load
Dissymmetry of liftDistance measuring equipmentDistance records
Distinguished Flying CrossDistressDistress signal
DitchDiveDive brake
Diversion airportDivertDME
Dme arcDme fixDNL
DODDogfightDoldrums
Domestic airspaceDopeDoping
DorsalDOTDouble booking
DownburstDownwashDownwind leg
DragDrag chuteDrag equation
DraughtDriftDrift indicator
DrizzleDrmsDrogue
DroneDrop tankDTK
DTSDTUDual control
DUATDue regardDuplex
DuraluminDust devilDust storm
Dutch rollDuty timeDVFR
DVORDynamicDynamic lift
Dynamic rollover


E
Earth-referenced flight path angleEASAEcm
EDCTEddyEFAS
EFCEFISEgpws
EGTEICASEights on pylons
EISElevatorElevon
ElevonsElliptical wingELT
EmergencyEmergency locator transmitterEmpennage
Empty legEn route descentEncoder
Engine cowlEngine failureEnhanced Ground Proximity Warning System
EnplanementEnvelopeEPA
EphemerisEPSEquivalent airspeed
Estimated elapsed timeEstimated off-block timeEstimated time en route
Estimated time of arrivalETAETE
E-ticketsETMSETOPS
Excess baggageExcursion fareExecute missed approach
ExpectExpect further clearanceExpedite
Experimental aircraftExtra section


F
FAAFabricFAC
Factor of safetyFADECFAF
FAIFairingFalling leaf
FARFare basisFARs
FASTFBOFCC
FCLTFDPFDR
Federal aviation administrationFederal aviation regulationsFEIS
FenceFerry flightFillet
FinFinalFinal approach
Final approach courseFinal approach fixFIR
FIREFiringFishtailing
Fixed aerialFixed base operatorFixed wing
Fixed-wing aircraftFlameoutFlap
Flap angleFlaperonFlaps
FlareFlashlightFlat spin
Flat-fourFlattening outFleet air arm
Flettner rotorFlightFlight controls
Flight data recorderFlight deckFlight engineer
Flight envelopeFlight followingFlight information region
Flight inspectionFlight instructorFlight level
Flight lieutenantFlight Management SystemFlight number
Flight pathFlight path angleFlight phone
Flight planFlight planningFlight procedure
Flight service stationFlight simulatorFlight standards district office
Flight suitFlight testFlight time
Flight watchFlightpathFloat
FloatplaneFloodlightFlow control
FlutterFlutter speedFly-in
Flying clubsFlying controlsFlying machine
Flying positionFlying speedFlying wing
Flying wiresFlying-boatFMS
Folding wingFolding wingsForce
Forced landingForecastForeign object damage
Formation flyingForward-looking infraredForward-swept wing
Four-stroke engineFPMFractional ownership
FRCFree balloonFreeboard
FrontFrostFSDO
FSSFuel dumpingFuel surcharge
Fuel systemFuel tankFuels
Full panelFuselage


G
GADOGAFORGale
GalleyGas bagGas discharge
GascolatorGatesGCA
Geared engineGeneral aviationGeometric pitch
Glass cockpitGlazeGlide
Glide distanceGlide ratioGlide slope
GlidepathGliderGlideslope
Glideslope intercept altitudeGlidingGliding angle
Global Positioning SystemGNSSGo ahead
Go aroundGo-aroundGore
GPSGpwsGRADE
Gradient windGrass stripGraveyard spiral
GravityGravity tankGreat circle
Greenwich mean timeGridsGross weight
Ground clutterGround controlled approachGround delay
Ground Proximity Warning SystemGround resonanceGround speed
Ground stopGroundloopGroup
Group captainG-suitGull-wing
GustGust lockGyrodyne
Gyroplane


H
HAAHailHAL
HandoffHang glidingHangar
HardpointHATHave numbers
HazeHead resistanceHeader tank
HeadingHeavier-than-air craftHeavy
Heavy fighterHeavy jetsHeight above airport
Height above landingHeight above touchdownHelicopter
HelicoptersHelipadHeliport
HeliumHertzHidden city faring
High cloudsHigh frequencyHigh-lift wing
High-speed flightHigh-wing monoplaneHold for release
Hold procedureHolding fixHolding pattern
Holding pointHomingHorizontally opposed
HorsepowerHot and highHotel
Hover taxiHSIHub
HUDHullHumidity
HumpHump speedHurricane
HydrodynamicsHydrofoilHydrogen
HydroplaneHydrostaticsHygrometer
Hypersonic


I
I say againIACIAF
IAPIASIata
IBMICANICAO
Ice accretionIcingIcing conditions
IdentIdentification lightIdle thrust
IFFIFRIfr aircraft
Ifr conditionsILSIls categories
IMCImmediatelyImmelmann turn
In transitInboundIncidence wires
Independent air forceIndian air forceIndicated Airspeed
Indicated altitudeIndirect flightsInduced drag
Induction manifoldInertia starterInertial navigation system
InflationInflightInflow
Information requestInitial approach fixInitial approach segment
In-line engineINMInner marker
INSInstabilityInstrument approach
Instrument approach procedureInstrument departureInstrument Flight Rules
Instrument flyingInstrument Landing SystemInstrument meteorological conditions
Instrument runwayIntegrityInterceptor
Interceptor fighterIntercoolerInterference
InterlineInterliningIntermediate approach segment
Intermediate fixInternal combustion engineInternational airport
Interplane strutInterrogatorInterrupter gear
Intersecting runwaysIntersectionIntersection departure
InvarInversionISA
IsobarIsothermIsothermal layer
ItineraryITUIVSI


J
JammingJatoJerk
Jet AgeJet blastJet lag
Jet propJet routeJet stream
Jet-assisted takeoffJoint fareJoystick
Junkers 52


K
Katabatic windKeelKhz
KIASKilometerKinetic heating
KingKiteKite balloon
KnotKnown icingKnown traffic
KtasKutta condition


L
LAALAASLagging
LAHSOLaminar flowLaminar flow wing
LanderLandingLanding area
Landing distance availableLanding feeLanding flare
Landing groundLanding lightLanding minimums
Landing rollLanding runLanding sequence
Landing speedLanding tLanding weight
Landing wiresLandplaneLaps
Lapse rateLast assigned altitudeLateral axis
Lateral controlLateral navigationLateral separation
Lateral stabilityLayoverLazy 8
LBALDALDIN
LeadingLeading and trailing edgesLeading edge
Leading edge slotLeading-edgeLeakage
LEDLegLeste
LiftLift coefficientLift wires
Lifting bodyLift-to-drag ratioLight aeroplane
Light jetsLighted airportLine squall
Link trainerLMMLNAV
Load factorLoadingsLOC
Local airport advisoryLocal Area Augmentation SystemLocal traffic
LocalizerLocalizer courseLocator
LogLogbookLOM
Long haul flightLongeronLongitudinal axis
Longitudinal separationLongitudinal stabilityLoop
LOPLORANLoran-c
Lost communicationsLouvreLow altitude airway structure
Low approachLow cloudsLow frequency
Low-cost airlinesLowest fare routingLowest safe altitude
Low-g conditionLow-speed flightLow-wing
Low-wing monoplaneLPVLubber line
Lufbery circle


M
MAAMacMach
Mach numberMadMaestro
Magnetic courseMagnetic headingMagnetic variation
MagnetoMagnus effectMahwp
Maiden flightMainplaneMaintain
Malcolm hoodMalleabilityMALS
MALSRMandatory altitudeManoeuvrability
MAPMapsMarker beacon
Mass balanceMaster connecting rodMaximum authorized altitude
Maximum payloadMaximum powerMaximum Takeoff Weight
MaydayMCAMCO
MDAMDHMEA
Mean chordMean Sea LevelMechanical flight
MEDEVACMETARMeteorograph
Meter list display intervalMeteringMFD
MIAMicroburstMicrowave landing system
Middle markerMidsize jetsMid-wing monoplane
Mile high clubMilitary operations areaMilitary training routes
MillibarMinimum connecting timeMinimum crossing altitude
Minimum descent altitudeMinimum en route altitudeMinimum friction level
Minimum fuelMinimum holding altitudeMinimum ifr altitude
Minimum ifr altitudesMinimum reception altitudeMinimum safe altitude
Minimum safe altitude warningMinimum sector altitudeMinimum vectoring altitude
MinimumsMissed approachMissed approach point
Missed approach procedureMistMIT
MITREMixture controlMLS
MNPSMOAMOCA
ModeMODE CMode-c
Mode-sMonitorMonocoque
MonoplaneMonsoonMooring mast
MOPSMotorMountain breeze
Movement areaMoving target indicatorMRA
MSAMSAWMSL
MSNMulticomMultiplane
Multiple runwaysMVAMVFR


N
N1N2NACA
NacelleNAILSNarrow-body aircraft
NASNASANAT
National airportNational airspace systemNational flight data digest
National Transportation Safety BoardNATONautical mile
Nautical Mile per HourNAVNAVAID
Navigable airspaceNavigationNavigation light
Navigational aidNDBNeck
NegativeNEPANet fare or net rate
NEXRADNightNight fighter
NMNMACN-numbers
No gyro approachNo joyNo transgression zone
NOAANondirectional beaconNon-endorsable
NonradarNon-refundableNon-stop flight
Nontowered airportNon-towered airportNon-transferable
NORADNORDONormal axis
Normal flightNormally aspirated engineNorte
North american routeNorth markNorth pacific
Nose cowlNose-diveNo-shows
NOSIGNOTAMNotice to airmen
Notices to airmen publicationNSAPNTSB
NWS


O
OATOBSObservation balloon
ObstacleObstacle free zoneObstruction
Obstruction lightOcclusionOccupied
Oceanic airspaceOctane numberOFA
Off courseOFZOmega
Omni-directional beaconOpen jawOpposite direction aircraft
Optimum angleORDOrganized track system
OrnithopterOrocaOrographic rain
OshkoshOTSOutbound
Outer areaOuter coverOuter fix
Outer markerOutflowOverbook
OverbookingOverhangOverhead join
Overspeed conditionOxidationOxygen equipment


P
PackagePackingPanel
Pan-panPANS-OPSPAPI
PARParachuteParachutist
Parallel ils approachesParallel runwaysParasitic drag
Parasol monoplanePart 91Passenger coupon
PatchPatternPATWAS
PAXPayloadPayload with full fuel
PCAPDCPDR
PedalPenalty farePEP
PerformancePetrolP-factor
PFCPHONEPIC
PIDPPilotPilot briefing
Pilot in commandPilot parachutePilot report
Pilot weather reportPilotagePIREP
PistonPiston ringPitch
Pitch indicatorPitch ratePitching
Pitch-upPitot pressurePitot tube
PlanePlanformPNR
Polar frontPOPPorpoising
PortPosition errorPosition report
PositioningPositive controlPower
Power jetPower loadingPractice instrument approach
PrecipitationPrecision approach path indicatorPrecision approach procedure
Precision approach radarPrecision runway monitorPreferential routes
Preferred ifr routesPressure altitudePressure gradient
PressurizationPressurizedPrevailing visibility
PrimerPRMProcedure turn
Procedure turn inboundProfile descentProfile drag
Progressive taxiProhibited airspaceProhibited area
ProjectionProofingProp wash
PropellerPropjetProtected airspace
PrototypePSIPterodactyl
PTTPublished routePulse
PurityPushbackPusher
Pusher configurationPusher enginePusher propeller
PVCPVDPylon


Q
QNHQuadrantQuadruplane
Quick look


R
RAAFRadalRadar
Radar advisoryRadar altimeterRadar approach
Radar contactRadar contact lostRadar environment
Radar flight followingRadar identificationRadar required
Radar separationRadar serviceRadar service terminated
Radar surveillanceRadar vectoringRadial
Radial engineRadiatorRadio altimeter
Radio magnetic indicatorRadio telephonyRadius of action
RadomeRAERAF
RAILRAIMRain
RAMRamjetRamjet engine
RampRandom routeRange
RAPCORAPCONRATCF
Rate of climbRate of climb indicatorRate of roll
Rated altitudeRatoRCAF
RCCRCORCU
RdfRDPRead back
ReceiverReceiving controllerReconnaissance
Record locatorRecordsRecovery
RedlineRegistration marksREIL
Rejected takeoffRelative humidityRelative wind
Remote communications outletReportReporting point
RepositioningResearchRestoring
Restricted airspaceRestricted areaRestricted to airport check-in
Resume own navigationRetreating blade stallReversal
ReversersRevolution indicatorReynolds number
RFCRidgeRigger
RiggingRigid airshipRMI
RMSRnasRNAV
Rnav approachRNPRNZAF
ROCRocket engineRocket propulsion
Rocket-poweredRocket-powered aircraftRockets
RODRogallo wingRoger
RollROMRotary
Rotary engineRotary wingRotate
RotorRotorcraftRoundtrip
RouteRoute segmentRouting
Royal aeronautical societyRoyal air forceRoyal aircraft establishment
Royal aircraft factoryRoyal flying corpsRoyal naval air service
RPMsRpvRPZ
RSSRTCARudder
Rudder barRuddervatorsRunway
Runway end identifier lightsRunway gradientRunway heading
Runway incursionRunway overrunRunway safety area
Runway use programRunway visual rangeRVR
RVSM


S
SACSafety alertSafety belt
Safety pilotSail backSailplane
SALSSandstormSAR
SatcomSausageSay again
Say altitudeSBACScarff ring
Schneider trophyScreeningScud
Scud runningSDFSea breeze
Sea level engineSeamsSeaplane
Search and rescueSectionSectional chart
See and avoidSegmentSeizing
SELSELCALSemi-monocoque
Semi-rigid airshipSeparationSeparation minima
Separation pointSeriesService
Service ceilingServo controlSesquiplane
Settling with powerSextantShort haul
Short-field takeoffShort-haul flightShoulder season
SHPSIDSideslip
Sideslip angleSIGMETSigmet information
Significant pointSilencerSimplex
Single frequency approachSIPSituated in
Situation awarenessSkiddingSkin
Skin frictionSlashSlat
SlatsSlaved compassSleet
SleeveSlipSlipstream
Slipstream tSlopSlot
Slow flightSlow rollSlow taxi
Small aircraftSmall endSMOH
SMSSnowSNR
SoaringSOIRSonic boom
Sound barrierSpanSpar
Special use airspaceSpecial VFRSpecial vfr conditions
Special vfr flightSpecial vfr operationsSpeed
Speed adjustmentSpeed brakesSpeed to fly
SperrySpillSpin
SpinnerSpiralSpiral instability
Split flapSplit SSplit ticketing
SpoilerSpoilersSponson
SponsonsSporting eventsSpotter
SquadronSquallSquawk
SquitterSSALRSSB
StabilatorStabilisersStability
StabilizerStaggerStall
Stall stripsStand byStandard rate turn
Standard terminal arrivalStandbySTAR
StarboardStarsStarter
Static balanceStatic pressureStatic restrictions
StationStation modelStatute mile
STCSTDSteel
StemStepStep climb
Step turnStepdown fixStewardess
STOLStopoverStopway
StormStraight-in landingStraight-in landing minimums
StrainStratosphereStratus
StreamlineStressStressed skin
StringerStructureStrut
StubStuntsS-turn
SubmarineSubsonicSubsonic flight
SubstitutionsSuctionSumps
SuperchargedSuperchargerSuperheat
SupersonicSupersonic speedSupporting surfaces
Surface areaSurface friction dragSurface sector
Surveillance radar approachSVFRSweep back
Swept wingSwept-wingSynch
SynchroSynchronising gearSynthesizer
Synthetic vision


T
TabsTacTACAN
TachometerTactical air navigationTactics
TAFTail heavinessTail number
Tail unitTaildraggerTail-first aeroplane
Tailless aeroplanesTailless aircraftTailplane
TailskidTailwheelTailwind
TakeoffTake-offTake-off distance available
Take-off run availableTake-off weightTandem wing
TanksTargetTarmac
TASTAWSTaxi
Taxi lightTaxi timeTaxiing
TaxiwayTaxyingTBO
TCATCASTCLT
TemperatureTemperingTensile strength
Terminal Aerodrome ForecastTerminal areaTerminal Control Area
Terminal radar service areaTerminal velocityTERPS
Terrain Awareness and Warning SystemTerrain followingTetrahedron
That is correctThe ScissorsThermometer
ThicknessThickness ratioThree-point landing
ThresholdThreshold crossing heightThrottle
ThrustThunderstormTicket
Ticket issuanceTilt rotorTiltrotor
TIMSTMATMC
TMSTODATORA
TorchingTornadoTorque
Touch and goTouch-and-goTouchdown
Touchdown zoneTouchdown zone elevationTower
TrackTrack angleTRACON
TractorTractor configurationTractor propeller
Trade windsTraffic advisoriesTraffic alert and collision avoidance system
Traffic in sightTraffic patternTrailing edge
Trailing-edgeTrainersTranscribed weather broadcast
Transfer of controlTransition pointTranslational lift
TransmissometerTransponderTransport
Tricycle gearTricycle landing gearTricycle undercarriage
TrimTrim tabTrimotor
TriplaneTroop carrierTropopause
TroposphereTroughTrue air speed
True airspeedTrue courseTSA
TSOT-tailTTS
TurbineTurbofanTurbojet
TurbopropTurboshaftTurbulent flow
Turn indicatorTurnbuckleTurret
TVORTwin boomTwo-stroke
Typhoon


U
UASUHFUltralight vehicle
UnableUnder the hoodUndercarriage
UNICOMUniformUniversal Communication
Unpublished routeUnstickUrgency
UsaacUsaafUsable fuel
USAFUscgUseful load
UsmcUsnUTC


V
ValveVariable geometry wingVariable-geometry wing
Variable-pitch propellerVariometerVASI
VectorVeeringVelocity
VentVentralVenturi tube
VerifyVertexVertex time of arrival
Vertical axisVertical navigationVertical separation
Very high frequencyVery light jetsVery low frequency
VFRVfr aircraftVfr conditions
Vfr-on-topVHFVHF Omnidirectional Range
VictorVictoria CrossViscosity
VisibilityVisual approachVisual approach slope indicator
Visual descent pointVisual flight rulesVisual meteorological conditions
Visual separationVLFVMC
VNAVVOLMETVOR
VORTACVortexVortex generator
VorticesVOTVref
VRSVstolVTA
V-tailVTOL


W
WAASWaiting timeWake
Wake turbulenceWankel engineWarm front
WarningWash-inWashout
Wash-outWater tanksWaypoint
WeatherWeather advisoryWeather minimums
WedgeWeightWetted area
WheelWheel pantsWhen able
WhirlwindWide Area Augmentation SystemWide-body aircraft
Wilde sauWindWind cone
Wind shearWind tWind tunnel
WindmillWindow of convenienceWindsock
WingWing configurationWing fence
Wing planWing sectionWing spar
Wing strutWing tipWing twist
Wing warpingWingletWing-loading
WingspanWingtipWingtip vortices
WirelessWiringWood construction
Wright brothers


X
X engineX-axis


Y
YawYaw axisYaw damper
YawingYoke


Z
ZephyrZeppelinZero fuel weight
ZoningZoomingZulu
Zulu time