PROJECTdocshare02.docshare.tips/files/13118/131183630.pdf11 REV 5.0 03-08-09 PROJECT 45 TECHNICAL AAVIATION ACRONYMS L45 Aircraft (Primarily) AFM Airplane Flight Manual AFS Auto Flight

PROJECT PROJECT 4545TECHNICAL TECHNICAL AAVIAVIATION TION ACRONYMSACRONYMS

L45 AircraftL45 Aircraft (Primarily)(Primarily)

AAAAE AAE Above Above Airport Airport ElevationElevationAAAAFIF FIF AuAutotomamateted d AAir ir FaFacicililitities es InInfoformrmatatioion n FiFileleAAP AAP Altitude Altitude Awareness Awareness PanelPanelAABB AAiir r BBlleeeeddABM AbeamABM AbeamABN AbnormalABN AbnormalABNORM AbnormalABNORM AbnormalABS AbsoluteABS AbsoluteABV AboveABV AboveAC AC Alternating Alternating Current Current / / Advisory Advisory Circular Circular A/C A/C Air Air Conditioning Conditioning / / AircraftAircraftACAS ACAS Airborne Airborne Collision Collision Avoidance Avoidance SystemSystemACARS ACARS ARINC ARINC Communications Communications Addressing Addressing and and Reporting Reporting SystemSystemACCEL ACCEL Acceleration, Acceleration, AccelerateAccelerateACFT AircraftACFT AircraftACM ACM Air Air Cycle Cycle MachineMachineACMP ACMP Alternating Alternating Current Current Motor Motor Pump Pump / / Electric Electric Hydraulic Hydraulic PumpPumpACMS ACMS Aircraft Aircraft Condition Condition and and Monitoring Monitoring SystemSystemACP ACP Audio Audio Control Control PanelPanelACPT AcceptACPT AcceptACRU ACRU Air Air Conditioning Conditioning Refrigeration Refrigeration UnitUnitACT ACT Active Active / / ActivateActivateACTV ActiveACTV ActiveACU ACU Antenna Antenna Coupler Coupler UnitUnitAD AD Airworthiness Airworthiness DirectiveDirectiveADC ADC Air Air Data Data Computer Computer / / Attitude Attitude determination determination and and ControlControlADF ADF Automatic Automatic Direction Direction Finder Finder / / FindingFindingADG ADG Air Air Driven Driven Generator Generator ADI ADI Attitude Attitude Director Director Indicator Indicator ADIRS ADIRS Air Air Data Data Inertial Inertial Reference Reference SystemSystemADIRU ADIRU Air Air Data Data Inertial Inertial Reference Reference UnitUnitADJ ADJ Adjusted Adjusted / / AdjustmentAdjustmentADM ADM Air Air Data Data ModuleModuleADP ADP Air Air Driven Driven Pump Pump (Generator)/Air (Generator)/Air Driven Driven Demand Demand Hydraulic Hydraulic PumpPumpADR ADR Air Air Data Data ReferenceReferenceADRG ADRG ARC ARC Digitized Digitized Raster Raster GraphicsGraphicsADRS AddressADRS AddressADS ADS Air Air Data Data SystemSystemADU ADU Air Air Data Data UnitUnitADV ADV Advisory Advisory / / Advance Advance / / AdvancedAdvancedAFCS AFCS Avionic Avionic (Automatic) (Automatic) Flight Flight Control Control SystemSystemAFDS AFDS Autopilot Autopilot Flight Flight Director Director SystemSystemAFE AFE Above Above Field Field ElevationElevationAFIS AFIS Automatic Automatic Flight Flight Information Information SystemSystemAFIS AFIS Automatic Automatic Flight Flight Inspection Inspection SystemSystem

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AFM AFM Airplane Airplane Flight Flight ManualManualAFS AFS Auto Auto Flight Flight System System / / Auto Auto Flight Flight Simulator Simulator AFTN AFTN Aeronautical Aeronautical Fixed Fixed TelTelecommunications ecommunications NetworkNetworkA/G Air/GroundA/G Air/GroundAGC AGC Automatic Automatic Gain Gain ControlControlAGL AGL Above Above Ground Ground LevelLevelAH AH Attitude Attitude HeadingHeadingAHC AHC Attitude Attitude Heading Heading Computer Computer AHRS AHRS Attitude Attitude Heading Heading Reference Reference SystemSystemAHRU AHRU Attitude Attitude Heading Heading Reference Reference UnitUnitAIAA AIAA American American Institute Institute of of Aeronautics Aeronautics and and AstronauticsAstronauticsAIDS AIDS Aircraft Aircraft Integrated Integrated Data Data SystemSystemAIL AIL Aileron Aileron / / Autopilot Autopilot InterlockInterlockAIP AIP Aeronautical Aeronautical Information Information PublicationPublicationA/I A/I PRSOV PRSOV Anti-Icing Anti-Icing Pressure Pressure Regulating Regulating and and Shutoff Shutoff ValvValveeAIREP AIREP Air Air ReportReportAIRMET AIRMET Weather Weather Advisory Advisory ServiceServiceAIU AIU Audio Audio Interface Interface UnitUnitAL AlertAL AlertALPA ALPA Air Air Line Line Pilots Pilots AssociaAssociationtionALPHA ALPHA Angle Angle of of Attack Attack for for a a specific specific configurationconfigurationALRT AlertALRT AlertALS ALS Auto Auto Throttle Throttle Limit Limit SwitchSwitchALT AltitudeALT AltitudeALT ALT HOLD HOLD Altitude Altitude HoldHoldALTM Altimeter ALTM Altimeter ALTN AlternateALTN AlternateALT/S ALT/S Altitude Altitude SelectSelectALW ALW Allowable Allowable Landing Landing WeightWeightAM AM Amplitude Amplitude ModulationModulationAMB AmbientAMB AmbientAMBG AmbiguityAMBG AmbiguityAMFP AMFP Auxiliary Auxiliary Motive Motive Flow Flow PumpPumpAML AML Advanced Advanced Manual Manual LineLineAMP(s) AmperesAMP(s) AmperesAMR Auto/Manual/RemoteAMR Auto/Manual/RemoteAMU AMU Audio Audio Management Management UnitUnitAND AND Aircraft Aircraft Nose Nose DownDownANNUNC Annunciator ANNUNC Annunciator ANT AntennaANT AntennaANU ANU Aircraft Aircraft Nose Nose UpUpAOA AOA Angle Angle of of AttackAttackAP AP Auto Auto PilotPilotAPB APB Auxiliary Auxiliary Power Power Breaker Breaker APD APD Approach Approach Progress Progress DisplayDisplayAPFD(S) APFD(S) Autopilot Autopilot Flight Flight Director Director (System)(System)APL AirplaneAPL Airplane

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APM APM Autopilot Autopilot Monitor Monitor APP ApproachAPP ApproachAPPR ApproachAPPR ApproachAPPROX ApproximatelyAPPROX ApproximatelyAPPU APPU Asymmetry Asymmetry Position Position Pick-off Pick-off UnitUnitAPR APR Automatic Automatic Performance Performance Reserve Reserve E1 E1 / / ApproachApproachAPS APS Altitude Altitude PreselectPreselectAPT AirportAPT AirportAPU APU Auxiliary Auxiliary Power Power UnitUnitAPX AppendixAPX AppendixAQP AQP Advanced Advanced Qualifications Qualifications ProgramProgramARFF ARFF Aircraft Aircraft Rescue Rescue and and Fire Fire FightingFightingARINC ARINC Aeronautical Aeronautical Radio Radio IncorporatedIncorporatedARND AroundARND AroundARPT AirportARPT AirportARR ArrivalARR ArrivalARRVL ArrivalARRVL ArrivalAARRSA SA AAirirspspacace e RRadadar ar SSerervivice ce AArereaaARSPC AirspaceARSPC AirspaceARSR ARSR Air Air route route surveillance surveillance radar radar ARTCC ARTCC Air Air Route Route Traffic Traffic Control Control Center Center ARVL ArrivalARVL ArrivalAS AS Airspeed Airspeed / / Altitude Altitude Mode Mode Switch Switch Monitor Monitor A/S AirspeedA/S AirspeedASA ASA Auto Auto Land Land Status Status Annunciator Annunciator ASAP ASAP As As Soon Soon As As PossiblePossibleASEL ASEL Altitude Altitude Pre-select Pre-select / / Altitude Altitude SelectSelectASI ASI Air Air Speed Speed Indicator Indicator A/Skid A/Skid Anti Anti SkidSkidASMD AssumedASMD AssumedASP ASP Audio Audio Selector Selector PanelPanelASR ASR Airport Airport Surveillance Surveillance Radar Radar ASRS ASRS Aviation Aviation Safety Safety Reporting Reporting SystemSystemASSY AssemblyASSY AssemblyASTP ASTP Advanced Advanced Simulation Simulation TraiTraining ning ProgramProgramASYM ASYM Asymmetrical Asymmetrical / / AsymmetryAsymmetryA/T A/T Auto Auto ThrottleThrottleAATA TA Actual Actual Time Time of of Arrival Arrival / / Air Air Transport Transport AssociaAssociationtionAATC TC Air Air Traffic Traffic ControlControlAATC/DABS TC/DABS Air Air Traffic Traffic Control Control / / Discrete Discrete Address Address Beacon Beacon SystemSystemAATCRBS TCRBS Air Air Traffic Traffic Control Control Radar Radar Beacon Beacon SystemSystemAATE TE Automatic Automatic Test Test EquipmenEquipmenttA/THR A/THR Auto Auto Thrust Thrust FunctionFunctionAATIS TIS Automatic Automatic Terminal Terminal InformatInformation ion ServiceServiceAATP TP Airline Airline Transport Transport PilotPilotAATR TR Automatic Automatic Test Test RequiremRequirementsentsAATS TS Auto Auto Thrust Thrust System System / / Auto Auto Throttle Throttle SystemSystem

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PROJECT 45TECHNICAL AVIATION ACRONYMS

L45 Aircraft (Primarily)

ATT AttitudeATTND AttendantAUG AugmentationAUTO AutomaticAUX AuxiliaryA/V Auto-VisualAVAIL AvailableAVG AverageAVM Airborne Vibration Monitor AVS Audio Visual SystemAWOS Automated Weather Observation SystemAWY AirwayAZ Vertical AccelerationAZIM AzimuthAzMKR Azimuth Marker

BBAL BalanceBARO BarometricBAT BatteryBATT BatteryBB BroadbandB/B Back BeamBC Back CourseB/C Business ClassBCDS Bite Centralized Data SystemBCK BackBCL Battery Charge Limiter BCN BeaconB/CRS Back CourseBCTC Bombardier Customer Training Center BCU Bus Control Unit / Brake Control UnitBEV BeverageBF Boarded FuelBFE Buyer Furnished EquipmentBFO Beat Frequency Oscillator BIT Built-In TestBITE Built-In Test EquipmentBIU Bite Interface UnitBK BrakeBKGRD BackgroundBKR Breaker (Circuit Breaker)

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BKS BrakesBL Bezel / Back LightingBLD BleedBLK BlockBLW BelowBMC Bleed Air Monitoring Computer BMV Brake Metering ValveBNK BankBNR BinaryBOD Bottom of DescentBOMBX Bombing ExerciseBOV Bleed-Off ValveBPCU Bus Power Control UnitBPM Backup Power ModuleBRF BriefingBRG BearingBRK BrakeBRKNG BreakingBRKR Breaker BRT BrightBS British StandardBSCU Brake System Control UnitBSV Brake Shutoff ValveBSY BusyBTB Bus Tie Breaker BTC Bus Tie Contactor BTL BottleBTR Bus Tie RelayBTU British Thermal UnitB/U BackupBUF Buffet (as in buffet speed)BUS Bus Bar

CC Center / ColdCAD Computer Aided DesignCAM Computer Aided ManufacturingCANX Cancel ExerciseCAP CaptureCAPT CaptainCAS Calibrated Airspeed / Crew Alerting SystemCASS Cassette Player

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CAT Clear air turbulenceCATS Computer Assisted Training SystemCB,C/B Circuit Breaker CBMS Circuit Breaker Monitoring SystemCBN CabinCBP Circuit Breaker PanelCBT Computer-Based TrainingCCA Central Control Actuator CCW CounterclockwiseCD Compact DiscCDH Clearance Delivery HeadCDL Configuration Deviation listCDI Course Deviation Indicator CDR Clearance Delivery RadioCDU Control Display UnitCFDIU Centralized Fault Data Interface UnitCFDS Centralized Fault Display SystemCFI Certified Flight Instructor CFIT Controlled Flight Into TerrainCFM Cubic Feet Per MinuteC.G.,CG Center Of GravityCGSS Computer Generated System Simulator CHAN,CH ChannelCHDO Certificate Holding District OfficeCHG ChangeCHK CheckCHP Course and Heading PanelCHR ChronographCHRGR Charger CIDS Cabin Intercommunication Data SystemCIS Cabin Interphone SystemCK CheckCKLST Check ListCKT CircuitC/L Check ListCL CloseCLB ClimbCLK ClockCLR Clear CLSD ClosedCMD CommandCMPTR Computer CNC Computer Numeric ControlCNX CanceledCO CompanyCOM,COMM CommunicationCOMP Compressor / Compartment

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CON ContinuousCOND ConditionCONF ConfigurationCONFIG ConfigurationCONN ConnectionCONT Control / ContinuousCORR CorrectionCO RTE Company RouteCP Control PanelCPA Closest Point of Arrival / Closest Point of ApproachCPC Cabin Pressurization Controller CPCS Cabin Pressure Control SystemCPCU Cabin Pressure Controller UnitCPIT CockpitCPTP Civilian Pilot Training ProgramCPU Computer Processing UnitCRC Continuous Repetitive ChimeCRG CargoCRS CourseCRSR Cursor CRT Cathode Ray TubeCRZ CruiseCSCU Cargo Smoke Control UnitCSD Constant Speed DriveCSEU Control System Electronic UnitCSM/G Constant Speed Motor/Generator CSTR ConstraintCTA Control AreaCTAF Common Traffic Advisory FrequencyCTL PNL Control PanelCTR Contour / Center CTS Course To Steer CU Control UnitCUM CumulativeCVR Cockpit Voice Recorder CVRDA Cockpit Voice Recorder CW Clockwise / Continuous WaveCWMS Control Wheel Master SwitchCWP Crew Warning PanelCWS Control Wheel SteeringCWTS Control Wheel Trim Switch

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DDA Drift AngleDAC Digital to Analogue Converter DAFIF Digital Aeronautical Feature Information FileDAR Digital AIDS Recorder DAU Data Acquisition UnitDBU Data Base UnitDC Direct Current / Display Controller DCV Directional Control ValveDDRMI Digital distance and Radio Magnetic Indicator DECEL DecelerateDECR DecreaseDED DedicatedDEEC Digital Electronic Engine Computer / ControlDEG DegreeDEM DemandDEP Deployment / DeployedDEP,DEPT Departure / DepartDEPR DepressurizeDER Designated Engineering RepresentativeDES DescentDEST DestinationDET Detector DETD Digital Terrain Elevation DataDEV DeviationDFA Delayed Flap ApproachDFDAU Digital Flight Data Acquisition UnitDFDR Digital Flight Data Recorder DFFC Dual Fuel Flow Converter DG Display Generator / Display GyroDGC Display Guidance Computer DGR DegradeDH Decision HeightDIFF DifferentialDIM Dimmer DIR Direct / DirectionDIR TO Direct ToDIS,DIST DistanceDISC DisconnectDISCH DischargeDISCONT DiscontinuedDISP DispatchDITS Digital Information Transfer SystemDK DeckDMC Display Management Computer DME Distance Measuring Equipment

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DMU Data Management Unit (Aids)DN DownDNTKFX Down Track FixDOF Degrees Of FreedomDR Dead reckoning / Door DRO Digital ReadoutsDSDL Dedicated Serial Data LinkDSG Display Guidance Computer DSPL/DSPY DisplayDSU Display Splitter UnitDTG Distance To GoDTK/DTRK Desired TrackDTO Direct ToDTU Data Transfer UnitDU Display UnitDVC Dual Video CardDVM Digital Voltmeter

EE EastEADI Electronic Attitude Director Indicator EAS Equivalent AirspeedEBU Engine Build-UpECAM Electronic Centralized Aircraft Monitoring Computer ECAM Electronic Control and Maintenance displayECAS Engine Condition and Monitoring SystemECB Electronic Control Box (APU)ECHUM Electronic Chart Updating ManualEC JAR European Community-Joint Airworthiness RequirementsECM Engine Condition MonitoringECON EconomicECP ECAM Control Panel / EFIS Control PanelECR Engineering Change RecordsECS Environmental Control SystemECS PRSOV ECS Pressure Regulating and Shutoff ValveECTM Engine Condition Trend Monitor ECU Engine Control Unit / Electronic Control UnitECU Environmental Control Unit (Thrust Reversers)E/D End of DescentEDP Engine Driven Pump / Engine Primary Hydraulic PumpEDS Engine Diagnostic System / Electronic Display SystemEDS BITE Engine Diagnostic System Built-In Test Equipment

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EDU Engine Diagnostic SystemE/E Electrical / ElectronicEEC Electronic Engine ControlEEL Emergency Exit Lights / Emergency Escape Path LightingEET Estimated Elapsed TimeEFB Electronic Flight BagEFC Expect Further ClearanceEFCS Electronic Flight Control SystemEFD Electronic Flight DisplayEFI Electronic Flight InstrumentsEFIS Electronic Flight Instrument SystemEFOB Estimated Fuel On BoardEGPWS Enhanced Ground Proximity Warning SystemEGT Exhaust Gas TemperatureEHA Electro-hydraulic Actuator EHF Extremely high frequencyEHSI Electronic Horizontal Situation Indicator EI Engine Indicating / Engine IndicationsEICAS Engine Indication (Instruments) and Crew Alerting SystemEIS Electronic Instruments SystemEIU Engine Interface UnitEL Elevator ELAC Elevator Aileron Computer ELCU Electrical Load Control UnitELEC Electrical / ElectronicsELEV Elevator / ElevationELF Extremely low frequencyELMS Electrical Load Management SystemELT Emergency Location (Locator) Transmitter ELV ElevationEMA Electro-mechanical Actuator EMER EmergencyEMER GEN Emergency Generator EMER-V Emergency Bus VoltageEMI Electro-Magnetic InterferenceEMP Electric Motor PumpENG EngineENR,ENRT EnrouteENT,ENTR Enter ENTMT EntertainmentEO, E/O Engine OutE.P. Eye PointEPE Estimated Position Error EPI Elevator Position Indicator EPNdB Effective Perceived Noise in DecibelsEPR Engine Pressure RatioEPRL EPR Limit

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EQPT EquipmentEQUIV EquivalentER Extended RangeEROPS Extended Range OperationsERP EFIS Radar PanelERR Error ESS EssentialsEST EstimatedET Elapsed TimeETA Estimated Time of ArrivalETE Estimated Time en RouteETOPS Extended-Range Twin Engine OperationsETP Equal Time PointETT Estimated Takeoff TimeEVAC EvacuationEVMU Engine Vibration Monitoring UnitE/WD Engine / Warning DisplayEXCD ExceedancesEXEC ExecuteEXH ExhaustEXPED ExpediteEXT Extended / Extension / Exterior / External / Extinguisher EXTEN ExtensionEXT PWR External Power

FF/A Flight AttendantFAA Federal Aviation AdministrationFAC Flight Augmentation Computer FACTR Factor FADEC Full Authority Digital Engine Control (System)FAF Final Approach FixFAMX Familiarization ExerciseFAR Federal Aviation RegulationFAV Fan Air ValveFBO Fixed Base Operator FBW Fly-By-WireF/C Flight Crew/ First ClassFCC Flight Control Computer / Federal Communications CommissionFCDC Flight Control Data Concentrator FCP Flight Control PanelFCS Flight Control System

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FCST ForecastFCU Flight Control Unit / Flap Control Unit / Fuel Control UnitFD, F/D Flight Director FDAU Flight Data Acquisition UnitFDIU Flight Data Interface UnitFDR Flight Data Recorder FDU Fire Detection Unit / Flux Detector UnitFE Flight Engineer FF, F/F Fuel FlowFF PPH Fuel Flow Pounds Per Hour FFRATS Full Flight Regime Auto Throttle SystemFG Flight GuidanceFGC Flight Guidance Computer / Flight Guidance Controller FGC XFR Flight Guidance Controller Transfer (Switch)FGS Flight Guidance SystemFH Flight HandbookFHOC Fuel Heater Oil Cooler FIDDS Fault Isolation and Detection Display SystemFIDS Fault Isolation and Detection SystemFILT Filter FIR Flight Information RegionFIRM Fault Isolation Reporting ManualFL Flight LevelFLC Flight Level Change (Normal Profile)FLCH Flight Level Change High (Speed Profile)FLD FloodFLIFO Flight InformationFLIP Flight Information PublicationFLP Flap / Flight PlanFLT FlightFLT CLT Flight ControlFM Flight Management / Frequency modulationFMA Flight Mode Annunciator FMC Flight Management Computer FMCS Flight Management Computer SystemFMECA Failure Modes Effects and Criticality AnalysisFMGC Flight Management Guidance Computer FMGS Flight Management Guidance SystemFMS Flight Management SystemFMS CDU Flight Management System Control Display unitFMU Fuel Metering UnitFO Flyover F/O First Officer FOB Fuel on BoardFOD Foreign Object DamageFOG Fiber Optics GyroFOM Flight Operations Manual

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FOTM Flight Operations Training ManualFP Flight PlanFPA Flight Path Angle / Flight Path AccelerationF-PLN Flight PlanFPL Flight Planfpm Feet Per MinuteFPPU Feed-Back Position Pick-Off UnitFPS Flight Per SecondFPT Flight Plan TimeFPU Flap Power UnitFPV Flight Path Vector FQ Fuel QuantityFQF Fuel Quantity Fault (CAS MSG)FQI Fuel Quantity Indication / UnitFQSC Fuel Quantity Signal Conditioner FR FromFREQ FrequencyFRM Fault Reporting ManualFRT FrontFRV Fuel Return ValveFS Flight Safety / Fast Slew / Flight Simulator F/S Fast/Slow (indicator)FSBY Forced Standby (WX)FSDO Flight Standards District Office (FAA)FSEU Flap/Slat Electronic UnitFSF Flight Safety FoundationFSIM Flight Simulator Interface ModuleFSS Flight Service StationFSUIPC Flight Simulator Universal Inter-Process CommunicationFt, FT Foot / Feet / Flight TimeFTA Fault Tree AnalysisFTD Flight Training DeviceFTM Flight Training ManualFT/MN Feet per MinuteFTP File Transfer ProtocolFU Fuel UsedFWD ForwardFWC Flight Warning Computer FWS Flight Warning SystemFWSOV Firewall Shutoff Valve (Valves)

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GG Gravity (G-Force) / Gyro (flag on ADI)G/A,GA Go Around, General AviationGB Generator Breaker GC Guidance ControlGCA Ground Controlled ApproachGCR Generator Control RelayGCU Generator Control UnitGD Gear DownGE General ElectricGEN Generator GFI Ground Fault InterruptGFR Generator Field RelayGLC Generator Line Contractor GLY GalleyGMAP Ground Map / Ground mappingGMT Greenwich Mean TimeGNC Global Navigation ChartGND GroundGP General Purpose / Glide pathGPCU Ground Power Control UnitGPH Gallons Per Hour GPM Gallons Per MinuteGPS Global Positioning System (Navstar)GPU Ground Power UnitGPWS Ground Proximity Warning SystemGR Gear / Generator RelayGRAC Ground Reference Air ChartGRD GroundGRND GroundGRP Geographic Reference PointGRVTY GravityGS Glide Slope / Ground SpeedG/S Glide SlopeGSE Ground support equipmentGSP Ground Service Panel (Hydraulic)GSPD Ground SpeedGTOW Gross Takeoff WeightGU Gear UpGUI Graphical User InterfaceGW Gross Weight

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HH Hour / Hot / HoldHA Halon fire extinguisher HAI High Altitude IndoctrinationHCU Hydraulic Control Unit (T/R Control Valve)HDBK HandbookHDG HeadingHDG INT Heading InterceptHDG/S Heading SelectedHDG SEL Heading SelectHDL HandleHDPH HeadphoneHDWD HeadwindHF High FrequencyHFCU Hydromechanical Fuel Control UnitHG HeadingHI HighHIRF High Intensity Radiated FieldHLD Hold / HoldingHMG Hydraulic Motor Generator HMU Hydro-Mechanical UnitHOL High-Order LanguageHOT High Oil TemperatureHP High Pressure (Spool)hPa Hectopascal (One Hectopascal = One Millibar)HPV High Pressure ValveHR Hour HSC Hydraulic Service Center HSI Horizontal Situation Indicator HT Height / HeatHTR Heater HUD Head Up DisplayHUMID Humidifier HVOR High VHF Omni-Directional RangeH/Wind HeadwindHYD HydraulicsHZ Hertz (cycles per second in alternating current)

IIAC Integrated Avionic Computer IAF Initial Approach Fix

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IAPS Integrated Avionics Processor SystemIAS Indicated AirspeedIATA International Air Transport AssociationIAW In Accordance WithIBL Integrated Back LightingIC Integrated Computer / Display Flight Guidance Computer I/C Inspection/CheckICAO International Civil Aviation OrganizationIC/SG Intercommunication / Signal Generator IC/SG Integrated Computer/Symbol Generator (IC-600)ICU Instrument Comparator Unit / Indicator Control UnitID Identifier / IdentificationIDENT IdentificationIDG Integrated Drive Generator IDS Integrated Display System / Instrument Display SystemIDU Interactive Display UnitI.E. That IsIFE In Flight Entertainment SystemIFOG Interferometric Optical Gyro SystemIFOG Interferometer Fiber Optic GyroIFR Instrument Flight RulesIGN Ignition (EI)ILLUM Illuminate / IlluminatedILS Instrument Landing SystemIM Inner Marker IMBAL ImbalanceIMC Instrument Meteorological ConditionsIMM ImmediateIMP ImperialIN InchesINB InboundINBD InboardINBO InboardINBRD InboardINC IncorporatedINCR IncreaseINCREM IncrementIND Indicator / IndicatedINFLT In FlightINHB InhibitinHg Inches of Mercury (Standard Pressure 29.92 inHg)INHIB InhibitINIT Initialization / InitializeINOP Inoperative / InoperableINPH InterphoneINR Inner INS Inertial Reference System (J)

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INSP InspectionINST InstrumentINSTR InstrumentINT Interphone / Initialization / Intensity / IntersectionINTC InterceptINTCP InterceptINTEG GPS IntegrityINTPH InterphoneINV Inverter I/O Input/OutputIOE Initial Operating ExperienceIP Intermediate Pressure/Input/Intercept Profile/Initial PointIPC Intermediate Pressure Check valveIPPU Instrumentation Position Pick-off UnitIR Infrared / Infrared RadiationIRS Inertial Reference SystemIRU Inertial Reference UnitISA International Standard AtmosphereISB Inter-System BusISDU Inertial Sensor Display UnitISLN IsolationISOL Isolate / Isolated / Isolation (valve)ITT Interstage Turbine TemperatureIVSI Instantaneous Vertical Speed Indicator IV&V Independent Validation and Verification

JJAA Joint Aviation AuthorityJAR Joint Aviation Regulations (Requirements)JEPP JeppesonJETT JettisonJNC Jet Navigation ChartJOG Joint Operations GroupJP(4,5) Military Jet FuelJSTK Joystick

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KK,KT,KTS KnotsKEAS Knots Equivalent AirspeedKG KilogramskHz KilohertzKIAS Knots Indicated AirspeedKIFIS Kollsman Integrated Flight Instrument Systemkm Kilometerskph,km/H Kilometers Per Hour / Kilograms Per Hour kt KnotKTAS Knots True AirspeedkVA Kilovolt-AmpereKVAR Kilovolt-Ampere ReactiveKW Kilowatt

LL Left / LearjetLAF Load Alleviation FunctionLAND Auto Land mode annunciationLAT Latitude, LateralLAT/LON Latitude / LongitudeLAT REV Lateral RevisionLAV LavatoryLB Pound / Left BankLCA Line Check AirmanLCD Liquid Crystal DisplayLCL LocalLCN Load Classification Number LCU Light (Lighting) Control UnitLD Load; a unitized cargo loading container, (ie: LD-3)LDA Localizer type approachLDG LandingLDG GR Landing Gear LDOC Long Distance Operational ControlLE Leading EdgeLEC LectureLED Light Emitting DiodeLF Low Frequency / Left FrontLFT LeftLG, L/G Landing Gear LGCIU Landing Gear Control Interface Unit

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LGPIU Landing Gear Position Indicating UnitLGT LightLGW Landing Gross WeightLH Left HandLIM Limit / LimitationLIS Localizer Inertial SmoothingLJ LearjetLK LockLKD LockedLL Latitude / longitudeLLG Lower Lobe GalleyLLS Left Line Select KeyLLSK Left Line Select KeyLLWAS Low Level Wind Shear LM Low MinimumsLMM Locator Middle Marker LMR Load Monitor RelayLN Left NoseL NAV Lateral NavigationLNDG LandingLO LowLOC Localizer, LockLOFT Line Oriented Flight TrainingLOGO Logo graphicLOM Locator Outer Marker LONG,LON LongitudeLOP Line Of Position / Low Oil PressureLORAN Long Range NavigationLOS Loss of Signal / Line Oriented SimulationLP Low Pressure (Spool)LPM Liter Per MinuteLR Left Rear / LearjetLRC Long Range CruiseLrg LargeLRN Long Range NavigationLRRA Low Range Radio Altimeter LRU Line Replaceable UnitLS Line SelectL&S Limits and SpecificationsLSA Low Speed AwarenessLSB Lower Side Band / Least Significant BitLSK Line Select KeyLSP Limit Select PanelLSU Lavatory Service UnitLT,LTS Light / Left / Local TimeLTG LightingLVDT Linear Variable Differential Transformer

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LVL LevelLVL/CH Level ChangeLVOR Low VHF Omni-Directional RangeLW Left Wing / Landing WeightLWD Left Wing DownLWR Lower

M*M Degrees MagneticM1 MachM,m Mach / Machine / Meter / MagentaMAC Mean Aerodynamic Chord / Military Airlift CommandM.A.C. Mean Aerodynamic ChordMAC’s Midair CollisionsMADC Micro Air Data ComputersMAG MagneticMAG DEC Magnetic DeclinationMAG VAR Magnetic VariationMAINT MaintenanceMALF MalfunctionMAN Manual / Manifold / DEEC Fuel Control Mode (EI)MANFLD ManifoldMAP Missed Approach PointM/AS Mach AirspeedMASI Mach Airspeed Indicator MAX MaximumMAX CLB Maximum ClimbMAX DES Maximum DescentMAX END Maximum endurancemB Millibar MC Master CautionMCA Minimum Crossing AltitudeMCDP Maintenance Control and Display PanelMCDU Multifunction Control and Display UnitMCH MachMCP Mode Control PanelMCR Maximum Cruise Thrust / Maximum Recommended CruiseMCT Maximum Continuous ThrustMCU Modular Concept Unit / Master Control UnitMCW Maximum Cruise WeightMDA Minimum Descent AltitudeMDF Medium Density Fiberboard

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MDH Minimum Descent HeightMDI Manual Data InputsMDLF Minimum Desired Landing FuelMDU Multipurpose Display UnitMEA Minimum Enroute AltitudeMEC Main Engine ControlMECH Mechanic / MechanicalMed MediumMEL Minimum Equipment ListMEM MemoryMESC Mid Electronic Service Center MEW Manufacturers Empty WeightMF Medium FrequencyMFA Memorized Fault Annunciator MFD Multi-Function DisplayMFU Multi Function UnitMGMT,MGT ManagementMGP Microwave Glide pathMHz Megahertzmi MilesMIC MicrophoneMIC STK Stuck MicrophoneMID MiddleMIKE MicrophoneMIN MinimumMIP Main Instrument PanelMISC MiscellaneousMISCMP Mis-CompareMKR Marker / Range MarksMLG Main Landing Gear MLS Microwave Landing SystemMLW Maximum Landing WeightMM Middle Marker MMEL Master Minimum Equipment ListMmo Maximum Mach Operating SpeedMMT Minimum Movement ThresholdMN Main / Mach Number / MinuteMOA Military Operation AreaMOCA Minimum Obstruction Clearance AltitudeMOD Module / ModificationMOM Momentary ContactMON Monitor MONITR Monitor MORA Minimum Off Route AltitudeMOT Mark On TopM/P Mission Planner / Master Plan / Map PlanMPG Manual Pulse Generator / Miles Per Gallon

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MPH Miles Per Hour MPM Miles Per MinuteMPR Manual Power ReserveMPS Meters Per SecondMR Manual RateMRA Minimum Reception AltitudeMRC Maximum Range CruiseMRIU Maintenance and Recording Interface UnitMRM Maintenance Reporting ManualMSA Minimum Safe AltitudeMSB Most Significant BitMSG MessageMSL Mean Sea LevelMSP Mode Select PanelM-SPD Manual SpeedMSTR Master MSU Mode Select Unit / Mode Selector UnitMSW Master Switch, Control Wheel Master SwitchMTBF Mean Time Between FailureMTCE MaintenanceMTG Miles To GoMTNCE MaintenanceMTOGW Maximum Takeoff Gross WeightMTOW Maximum Takeoff WeightMTRS MetersMTW Maximum Taxi WeightMU Management Unitmul MulticomMUX Multiplexer / MultiplexMW Master WarningMW/MC Master Warning / Master CautionMZ Melt Zone (Fuse Plug)MZFW Maximum Zero Fuel Weight

NN1 Low Pressure Rotor (Fan) SpeedN2 High Pressure Rotor Compressor (Turbine) SpeedN North / Nose / NormalN APU or Engine RPM (%)N/A Not ApplicableNAC Nacelle (A streamlined enclosure for an aircraft engine)NAC Naval Air Crewman

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NACA National Advisory Committee for AeronauticsNAI Nacelle Anti IceNAM Nautical Air MilesNATNL NationalNASA National Aeronautics and Space AdministrationNATOPS Naval Air Training Operational Procedures StandardsNAV NavigationNAVAID Navigation AidNB Non-directional Radio Beacon / Narrow BandND Navigation DisplayNDB Non-directional Radio Beacon / Nav DatabaseNDN Nose DownNEG NegativeNEUT NeutralNEG NegativeNFO Non Fly Over NGM Nautical Ground MilesNiCAD Nickel-Cadmium BatteryNIST National Institute For Standards & TestingNLG Nose Landing Gear nm Nautical MileNO. Number NOCOM No CommunicationsNORM NormalNoPT No Procedure TurnNORDO No RadioNORM NormalNOTAM Notice to AirmenNOZZ NozzleNPA Nonprecision ApproachNRST NearestNTSB National Transportation Safety BoardNUM Number NUP Nose UpNW Nose WheelNWS Nose Wheel SteeringNXT Next

OO2 OxygenOA Non-Threat Advisory (TCAS)OAT Outside Air Temperature

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OBRM On Board Replacement ModuleOBS Observer / Omni Bearing Selector OCA Oceanic Control Area / Obstacle Clearance AltitudeOEW Operating Empty WeightOFF/R Off ResetOFST OffsetOGW Operating Gross WeightOH OverheatOHT OverheatOK OkayOM Outer Marker OMC Observer Member of the Crew / Operation Navigation ChartOMNI Omnidirectional Navigation RadioONC Operation Navigation ChartONS Omega Navigation SystemONSTAY On StationOP Open / OperatingO/P Output / Oil PressureOPM Operating Performance ManualOPORD Operation Order OPP OppositeOPR OperateOPRN OperationOPT OptimumORIDE OverrideOSB Oriented Standard BoardOSS Over Station Sensor / Omega Sensor SystemOUTB OutboundOUTBD OutboardOUTR Outer OVBD OverboardOVHD OverheadOVHT OverheatOVRD OverrideOVRDN OverriddenOVSPD Over SpeedOW, O/W Over Water OWE Operating Empty WeightOXY, Oxygen

PP3 Compressor Discharge Pressure

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P Panel / Projector PA Passenger Address / Public AnnouncementPA Proximity Intruder (TCAS)PAC Pilot at Controls / Pack (air-conditioning)PACK Air-conditioning PackagePAM Pulse amplitude modulationP amb Ambient PressurePAPR Paper PAR Precision approach radar PASS Passenger PAX Passengers / Passenger AddressPB PushbuttonPBE Protective Breathing EquipmentPCA Power Control Actuator PCIP PrecipitationPCU Power Control UnitP-DES Profile DescentPDI Pictorial Deviation Indicator PDP Power Distribution PanelPDS Primary Diversion StationPDU Pilot Display Unit / Power Drive UnitPED PedestalPEND PendantPE/PS Passenger Entertainment/Passenger Service SystemPERF PerformancePERS PersonnelPES Passenger Entertainment System / Pitch Enhancement SystemPF Pilot FlyingPFC Porous Friction Course Overlay (runway Surface)PFCS Primary Flight Control SystemPFD Primary Flight DisplayPFM Pulse frequency modulation / Pure Flipping MagicPG, PGE PagePHC Probe Heat Computer PIC Pilot In CommandPIT PitchPIT TRIM Pitch TrimPIU Passenger Interface UnitPK ParkPKS PacksPL PayloadPLA Power Level AnglePLAN EFIS ModePLI Pitch Limit Indicator PLNG PlanningPLS Pitch Limit SymbolPLT Pilot

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PM Phase modulation / AfternoonPMA Permanent Magnet Alternator PMC Power Management ControlPMG Permanent Magnet Generator PMP PumpPMS Performance Management System / Power Management SystemPNEU PneumaticPNF Pilot Not FlyingPNL PanelPNR Point of No ReturnPNRatio Positive/Negative RatioPO Outside Air PressurePOB Pressure Off BrakePOD Point of DescentPOI Principal Operations Inspector POS Position / PositivePOVMC Planned to Operate in Visual Meteorological ConditionsPPH Pounds Per Hour (Fuel Flow)PPOS Present PositionPPU Position Pick-off UnitPR PressurePRCHDG Heading Procedure TurnPRECIP PrecipitationPRED PredictionPRESS PressurePREV PreviousPRI / PRIM PrimaryPROB Probable / ProbablyPROC Procedure / ProceduralPROC T Procedure TurnPROF ProfilePROG ProgressPROT ProtectionPROX ProximityPRSOV Pressure Regulating and Shutoff ValvesP/RST Push To ResetPRT Printer PRV Pressure Regulating ValveP/S Pilot / StaticPSI Pounds Per Square InchPSID Pounds Per Square Inch DifferentialPSIG Pounds Per Square Inch GaugeP-SPEED Profile SpeedPSS Passenger Service systemPSU Passenger Service UnitPT2 Engine Inlet Total PressurePT2 Engine Inlet Pressure Sensing Probe

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PT PointPTC Pitch Trim Compensator PTH PathPTN Procedure TurnPTR Printer PTS Practical Test Standards (FAA)PTT Push To TalkPTU Power Transfer UnitPVI Para visual Indicator PW Pratt-WhitneyPWR Power

QQA Quality AssuranceQAR Quick Access RecordQC Quick ChangeQEC Quick Engine ChangeQFE Local Station Barometric PressureQNE Sea Level Standard Atmosphere PressureQNH Sea Level Atmosphere PressureQRH Quick Reference HandbookQT Quart (US)QTR Quarter QTY Quantity

RR Right / Red / ResetRA Radio Altitude / Radio Altimeter RA Resolution Advisories (TCAS II)RABS Reverse Actuated Bleed SystemRAD Radial / RadioRAIM Receiver Autonomous Integrity MonitoringRAM Random Access MemoryRAT Ram Air Turbine / Ram Air TemperatureRAT Relay Acceptance ThresholdRB Right Bank / Rudder BoostRBN Radio beaconRCA Reaching Cruise Altitude

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RCCB Remote Control Circuit Breaker RCD RecordRCDR Recorder RCL RecallRCT ReactRCVD ReceivedRCVR Receiver RDDMI Radio Distance Magnetic Indicator RDMI Radio Distance Magnetic Indicator REACT Rain Echo Attenuation Compensation TechniqueREC Recorder RECIRC RecirculateRECOG RecognitionREF ReferenceREFRIG RefrigerationREG Regulator REL Release / RelativeREP Representative / RepellentREPLNT RepellentREQ Required / RequirementsREQUAL RequalificationRES ReserveRESID ResidualREST RestrictionRESTR RestrictionRESTRICTD RestrictedRESV ReserveRET Retract / Recurrent Emergency Training / ReturnRETD RetardedREV Reverse / Reverser / RevisionRF Right Front / Refill / Radio FrequencyRFI Radio Frequency InterferenceRGS Reference Ground SpeedRGT RightRH Right HandR/I Remove / InstallR.J. Regional JetRLS ReleaseRLSK Right Line Select KeyRLY RelayRM Radio ManagementRMI Radio Magnetic Indicator RMKS RemarksRMP Radio Management PanelRMU Radio Management UnitRMUS Radio Management UnitsRN Right Nose

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RNAV Radio NavigationRNG RangeROC Rate of ClimbROL RollROT RotationRPM Revolutions Per MinuteRPT ReportRPTG ReportingRPU Receiver Processor UnitRQRD RequiredRQST RequestRR Right Rear RSB Radio System BusRSS Radio Sensor SystemRST ResetRSV ReserveRSVR Reservoir RT Receiver / Transmitter R/T Required Time of ArrivalRTA Receiver, Transmitter, AntennaRTCA Radio Technical Commission for AeronauticsRTE Route / Route DataRTN ReturnRTO Rejected Takeoff RTU Radio Tuning UnitRUD Rudder RVDT Rotary Variable Differential Transformer(s)RVR Runway Visual RangeRVSM Reduced Vertical Separation MinimumsRVSR Reverser RW Right Wing / RunwayR/W RunwayRWD Right Wing DownRWY RunwayRX Receive

SS South / SternSAE Society of Automotive EngineersSAF SafetySAI Standby Attitude Indicator SAR Search And Rescue / Surveillance Approach Radar

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SAS Stability Augmentation SystemSAT Static Air TemperatureSATCOM Satellite CommunicationSB Service BulletinSBY StandbySC Single Chime / Single CueS/C Step ClimbSCATANA Security Control of Air Traffic & Air Navigation AidsSCHED ScheduleSD System DisplayS/D Step DescentSDAC System Data Acquisition Concentrator SDCU Smoke Detection Control UnitSDD Sensor Display Driver SDU Sensor Display UnitSEC SECOND / Secondary / Sector SEC Spoiler Elevator Computer (A320)SECT Sector ScanSEL Select / Selector SELCAL Selective Call (Calling)SENS SensitivitySERV ServiceSETP Society of Experimental Test PilotsSFAR Special Federal Aviation RegulationSFCC Slat Flap Control Computer SFE Seller Furnished EquipmentSG Symbol Generator SHF Super High Frequency (3000 to 30,000mHz)S/I Switch / Indicator SIC Second In CommandSID Standard Instrument DepartureSIGMET Significant Meteorological AdvisorySIM Simulation / Simulator SIS Service Interphone SystemSKP SkipSL Sea levelSLCTD SelectedSLCTR Selector SLI Scan Line Interleave / Scalable Link InterfaceSLO SlowSLST Sea Level Static ThrustSLT SlatSMART Signal Monitoring and Retracting Technique systemSMK SmokeSml SmallSNAFO Situation Normal All Fricked UpSNGL Single

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SNS Standby Navigation SystemS/O Second Officer SOE Supervised Operational ExperienceSOP Standard Operating ProceduresSOV Shutoff ValveSP Speed / Space (spacebar) / Scratch Pad / Special PurposeSPD SpeedSPDBRK Speed BrakeSPD LIM Speed LimitSPKRS SpeakersSPLFLP Spoiler and FlapSPLR Spoiler SPLRN Spolieron (Spoiler/Aileron)SPPR Single-Point Pressure RefuelingSQ/SQL Squelch / SquallSRA Specific Range Air SRD Software Requirements DocumentSRFC SurfaceSRN Short Range NavigationSRS Speed Reference SystemSS Slow SlewSSB Single Side Band / Split System Breaker SSFDR Solid-State Flight Data Recorder SSRP Squat Switch Relay PanelSTA StationSTAB Stabilizer STAT StatusSTAT INV Static Inverter STAR Standard Terminal Arrival RouteSTB StabilizationSTBY StandbySTC Sensitivity Time Control / Standard Type CertificateSTD StandardSTG StageSTK StuckSTO Short Take Off / Store / StorageSTOL Short Takeoff or LandingSTR Steer / Steering / StretchSTRG SteeringSTRUCT StructuralSTS Status / System StatusSUA Special Use AirspaceSUMRY SummarySUP SupplySUPPL SupplementalSURF SurfaceSUSP Suspend Waypoint Sequencing

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SVCE ServiceSW SwitchSWLT Switch LightSWTG SwitchingSXTK Selected Cross TrackSY SystemSYN,SYNCH Synchronize / Synchronization / SynchronizedSYNC Synchronous / SynchronizeSYS SystemSYST System, Synch

T*T Degrees TrueT Turn / True / TotalTA Traffic Advisory (TCAS)TACAN Tactical Air NavigationTACH Tachometer TACT TacticalTAF International Terminal or Alternate weather ForecastTAI Thermal Anti-IceT amb Ambient TemperatureTA/RA Traffic / Resolution AdvisoryTAS True AirspeedTAT Total Air TemperatureTAWS Terrain Awareness Warning SystemTBD To Be DeterminedTBO Time Between OverhaulTC Turbo Compressor T/C Top of ClimbTCA Terminal Control AreaTCAS Traffic Alert & Collision Avoidance SystemTCC Turbine Case CoolingTCG Time Code Generator TCH Threshold Crossing heightTCS Touch Control SteeringT/D Top of DescentTDWR Terminal Doppler Weather Radar TE Trailing EdgeTEMP TemperatureTEMPS TemperaturesTERM Terminal / Terminal AreaTERR Terrain

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TFC TrafficTFR Transfer TGT TargetTH True HeadingT/HOLD Throttle HoldTHR ThrustTHR HOLD Throttle HoldTHROT ThrottleTHRSH ThresholdTHRU ThroughTHS Trimable Horizontal Stabilizer THSA Trimable Horizontal Stabilizer Actuator TK Tank / Track AngleTKE Track Angle Error TLA Thrust Lever AngleTLWD TailwindTMA Thrust Mode Annunciator / Terminal AreaTMA ICAO Terminal Control AreaTMC Thrust Management Computer TMPY TemporaryTMR Timer / Triple Modular RedundancyTMS Thrust Management SystemTMSP Thrust Mode Select PanelTO, T/O Takeoff / Take-off Thrust Setting (EI)TOC Top Of ClimbTOD Top Of DecentTOGA Takeoff / Go AroundTOGW Takeoff Gross WeightTOL ToleranceTONNES Metric TonTOW Takeoff WeightTP, T/P Turn Point / Test PointTPC Tactical Pilotage ChartTPIS Tire Pressure Indicating SystemTQ Throttle QuadrantTR Thrust Reverser / Transmitter Receiver TRANS Transition / Transfer TRANSP Transponder TRK Trace / Track (Also Ground Track)TROPO TropopauseTR(S) Transformer Rectifier TRSA Terminal Radar Service AreaTRU Transformer Rectifier UnitTS, Ts Standard TemperatureTST TestTT2 Engine Inlet Total TemperatureTTG Time to Go

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TTL TotalTURB Turbine / TurbulenceTURBL TurbulenceTVOR Terminal VHF Omni-Directional RangeT/WIND TailwindTWR Tower T/WX Traffic and Weather Displayed simultaneously (TCAS)TX Transmitting / Transmit

UU/D Upper DeckUFD Unit Fault DataUHF Ultra High FrequencyUIR Upper Information RegionULB Underwater Locator BeaconUNLK,UNL UnlockUNLKD Unlockeduni UnicomUNPARLÕD UnparalleledUNSCHD UnscheduledUPGR UpgradeUPR Upper USB Upper Side Band / Universal Serial BusUTC Coordinated Universal Time / Greenwich Mean Time / Zulu TimeUTIL UtilityUV Ultraviolet radiation

VV1 Critical Engine Failure SpeedV2 Take Off Safety SpeedV Volt / Velocity or speedVAC Volts Alternating CurrentVAL ValveVANG Vertical AngleVAPP VOR ApproachVAR Variation / VariableVASI Vertical Approach Slope Indicator V/B Vertical Bearing

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VBV Variable bypass valveVC Variable Camber VCP Video Cassette Player VCR Video Cassette Recorder VDC Volts Direct CurrentVDP Vertical Descent PointVEF Critical Engine Failure SpeedVEL VelocityVERT VerticalVFE Maximum Velocity Flaps ExtendedVFR Visual Flight RulesVFTO Velocity Final Take-Off (Green Dot)VG Vertical GyroVHF Very High FrequencyVHV Very High VoltageVIB VibrationVIB MON Vibration Monitor VIGV Variable Inlet Guide VanesVLF Very Low FrequencyVLV ValveVM Maneuvering SpeedVMC Visual Meteorological ConditionsVMCG Minimum Control Speed GroundVMIN Minimum Operating SpeedVMO Maximum Operating SpeedVNAV Vertical Navigation (Guidance, LORAN)VNV Vertical NavigationVOL VolumeVOLMET Meteorological information for aircraft in flightVOLT VoltageVOR VHF Omni Directional Range RadioVOR D VOR-DMEVORTAC VOR And TACAN Co-LocatedVOT VOR Test FacilityVOX VoiceVR Rotation Speed / Voltage Regulator VREF Reference SpeedVS,V/S Vertical SpeedVSI Vertical Speed Indicator VSPD Vertical SpeedVSR Vertical Speed RequiredVSV Variable Stator VaneVSCF Variable Speed - Constant FrequencyVTA Vertical Track AlertVTK Vertical TrackVTO Volumetric Top Off unit

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WW White / West / WeightWAI Wing Anti IceWARN WarningWAY PT WaypointWB Wide BandWBC Weight and Balance Computer W/D Wiring DiagramWF Fuel FlowWG WingWGD Windshield Guidance DisplayWGT, WT WeightWHC Window Heat Computer WHL WheelWHL MSTR Wheel Master WHLS WheelsWOW Weight-On-WheelsWPT WaypointWSHLD WindshieldWT WeightWTB Wing Tip BrakeWTNG WaitingWTR Water W/W Wheel WellWX Weather WXP Weather Radar Precipitation ModeWXR Weather Radar WXT Weather Radar Turbulence ModeWY PT Way Point

XX Cross (combining prefix, e.g. X-feed)X-BLD Cross BleedX-FEED Cross feedXCVR Transceiver XFER Transfer XFLOWS Cross FlowsXFR Transfer

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XMISSION TransmissionXMIT TransmitXMTR Transmitter XPDR Transponder XPECT ExpectXPNDR Transponder XTE Cross Track Error XTK Cross Track / Cross Track Error / Cross Track DistanceXTRK Cross-trackX/WIND Crosswind

Y Y Yellow Y/D Yaw Damper

ZZ Zulu TimeZFCG Zero Fuel Center of GravityZFW Zero Fuel WeightZFWCG Zero Fuel Weight Center of Gravity

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V SPEED TABLEVa Design Maneuvering SpeedVapp Normal Approach Speed (With one engine Inoperative)Vb Design speed for maximum gust intensityVc Design cruising speedVd Design diving speedVdf/Mdf Demonstrated flight diving speedVf Design flap speedVfc/Mfc Maximum speed for stability characteristicsVfe Maximum flaps extended speedVh Maximum speed in level flight with maximum continuous power Vle Maximum landing gear extended speedVlo Maximum landing gear operating speedVlof Lift-off speedVmax Maximum speedVmbe Maximum brake energy speedVmc Minimum control speedVmca Minimum control speed airborneVmcg Minimum control speed groundVmin Minimum speedVmo Mmo Maximum operating limit speedVmu Minimum unstick speedVne Never exceed speedVno Maximum structural cruising speedVr Rotation speedVref Reference SpeedVs Stalling speedVso Stalling speed in the landing configurationVs1 Stalling speed in a specified configurationVsr1 Stall CleanVsro Stall In Landing ConfigurationVtd Touchdown indicated airspeedVtoss Takeoff safety speed for Category A rotocraftVx Speed for best angle of climbVy Speed for best rate of climbV1 Takeoff decision speedV2 Takeoff safety speedV2min Minimum takeoff safety speed

NOTE: This comprehensive list of Technical Aviation Acronyms was compiled to be used for FlightSimulation only. You will also find other useful acronyms associated with computers and CNCmachines.

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Documents

PROJECTdocshare02.docshare.tips/files/13118/131183630.pdf11 REV 5.0 03-08-09 PROJECT 45 TECHNICAL AAVIATION ACRONYMS L45 Aircraft (Primarily) AFM Airplane Flight Manual AFS Auto Flight