Acronyms and abbreviations in avionics

This is a list of the acronyms and abbreviations used in avionics.

A

B
  • B RNAV: Basic area navigation
  • BARO: Barometric indication, setting or pressure
  • baro-VNAV: Barometric vertical navigation
  • BITE: Built-in test equipment
  • BCRS: Back course
  • BDI: Bearing distance indicator
  • BGAN: Broadcast Global Area Network
  • BER: Beyond economic repair
  • BTV: Brake to Vacate

C

D
  • DA: Decision Altitude (Precision approach or vertical guidance)
  • DA: Drift angle
  • DAPs: Downlink of aircraft parameters
  • DCDU: Data link control and display unit
  • DCL: Departure Clearance via CPDLC
  • DCP: Display control panel
  • DFDR: Digital Flight Data Recorder
  • DFMC: Dual Frequency Multiple Constellation
  • DG: Directional gyroscope
  • DGPS: Differential global positioning system
  • DH: Decision height (Precision approach, referred to threshold elevation)
  • DLR: Data link recorder
  • DME: Distance measuring equipment
  • DNC: Direct noise canceling
  • DP: Departure procedures
  • DPU: Display Processor Unit
  • DSP: Digital signal processing
  • DTU: Data transfer unit
  • DUAT: Direct user access terminal
  • DVE: Degraded Visual Environment
  • DRMC : Direct Reading Magnetic Compass .

E
  • EADI: Electronic attitude director indicator
  • ECAM: Electronic Centralised Aircraft Monitor
  • ECU: Engine Control Unit (=EEC)
  • EEC: Electronic Engine Control
  • EFD: Electronic flight display
  • EFIS: Electronic flight instrument system
  • EGI: Embedded GPS Inertial
  • EGNOS: European Geostationary Navigation Overlay Service
  • EGPWS: Enhanced ground proximity warning system
  • EGT: Exhaust gas temperature
  • EHS: Enhanced surveillance
  • EHSI: Electronic horizontal situation indicator
  • EICAS: Engine indication crew alerting system
  • EIS: Electronic Instrument System
  • ELT: Emergency locator transmitter
  • ENC: Electronic noise canceling
  • ENG: Engine
  • ENR: Electronic noise reduction
  • EPR: Engine pressure ratio
  • EPU: Emergency Power Unit
  • ERAM: En Route Automation Modernization
  • ETOP(S): Extended-range twin-engine operation(s)

F
  • FAA: Federal Aviation Administration
  • FADEC: Full authority digital engine control
  • FAF: Final approach fix
  • FANS: Future Air Navigation System
  • FAS: Final Approach Segment
  • FAT: Free air temperature
  • FATO: Final Approach and Take-off Area
  • FBO: Fixed Base Operator
  • FBW: Fly-by-wire
  • FCC: Flight Control Computer
  • FCMC: Fuel Control & Monitoring Computer
  • FCS: Flight Control System
  • FD: Flight Director
  • FDAU: Flight-data acquisition unit
  • FDPS: Flight plan Data Processing System
  • FDR: Flight Data Recorder
  • FDRS: Flight data recorder system
  • FDU: Flux detector unit
  • FF: Fuel flow
  • FG: Flight Guidance
  • FIC: Flight Information Centre
  • FIKI: Flight Into Known Ice
  • FIS-B: Flight information services – broadcast
  • FL: Flight Level
  • FLIR: Forward-looking infra-red
  • FLTA: Forward-looking terrain avoidance
  • FMA: Flight Mode Annunciator
  • FMGS: Flight Management & Guidance System
  • FMS: Flight management system
  • FOB: Fuel On-Board
  • FOD: Foreign object damage
  • FQIS: Fuel Quantity Indication System
  • FREQ: Frequency
  • FSS: Flight service station
  • FWS: Flight warning system
  • FYDS: Flight director/ Yaw damper system

G
  • GA: Go Around
  • GAST: GBAS Approach Service Type
  • GBAS: Ground based augmentation system
  • GCAS: Ground collision avoidance system
  • GCU: Generator control unit
  • GDOP: Geometric dilution of precision
  • GGS: Global positioning system ground station
  • GHz: Gigahertz
  • GLNS: GPS Landing and Navigation System
  • GLNU: GPS landing and navigation unit
  • GLONASS: Global Navigation Satellite System
  • GLS: GBAS Landing System
  • GLU: GPS landing unit
  • GMT: Greenwich Mean Time
  • GND: Ground
  • GNSS: Global Navigation Satellite System
  • GO: Go Around
  • GPS: Global Positioning System
  • GPWC: Ground proximity warning computer
  • GPWS: Ground proximity warning system
  • G/S: Glide Slope
  • GS: Ground speed

H

I

J

K

L
  • LAAS: Local Area Augmentation System
  • LADGPS: Local Area Differential GPS
  • LCD: Liquid crystal display
  • LDGPS: Local area differential global positioning satellite
  • LED: Light-emitting diode
  • LMM: Locator middle marker
  • LOC: Localizer
  • LOM: Locator outer marker
  • LOPA: Location of Passenger Accommodations
  • LORAN: Long-range navigation
  • LPR: Low Pressure Rotor
  • LPV: Localizer performance with vertical guidance
  • LRU: Line-replaceable unit
  • LTE: Loss of Tail Rotor Effectiveness Helicopters
  • LVP: Low visibility procedures, a designated state of operations at aerodromes where instrument approaches and low visibility takeoff procedures are using during inclement weather
  • LX: Lightning

M
  • MAP: Manifold absolute pressure or missed approach point
  • MAPS: Minimum Aviation Performance Standards
  • MAHF: Missed Approach Holding Fix (used in RNAV)
  • MAPt: Missed Approach Point (Instrument approach)
  • MAP: Missed Approach Procedure
  • MB: Marker beacon
  • MCBF: Mean cycles between failures
  • MCDU: Multi-purpose/Multi-function Control and Display Unit
  • MDA: Minimum Descent Altitude (non-precision approach)
  • MDH: Minimum Descent Height (non-precision approach)
  • MEA: Minimum en-route altitude
  • MEL: Minimum equipment list
  • METAR: Meteorological Aerodrome Report
  • MCP: Mode control panel
  • MF: Medium frequency
  • MFD: Multi-function display
  • MFDS: Multi-function display system
  • MIC: Microphone
  • MIDS: Multifunctional information distribution system
  • MILSPEC: Military specification
  • MKP: Multi-function Keypad
  • MKR: Marker beacon
  • MLS: Microwave landing system
  • MM: Middle marker
  • MMD: Moving map display
  • MNPS: Minimum navigation performance specifications
  • MOA: Military operations area
  • Mode A: Transponder pulse-code reporting
  • Mode C: Transponder code and altitude reporting
  • Mode S: Transponder code, altitude, and TCAS reporting
  • MOPS: Minimum Operational Performance Standard
  • MORA: Minimum Off Route Altitude
  • MOSArt: Modular Open System Architecture
  • MPU: Multifunction Processor Unit
  • MSA: Minimum safe altitude
  • MSD: Minimum Stabilization Distance
  • MSG: Message
  • MSP: Modes S-Specific Protocol
  • MSSS: Mode S-Specific Services
  • MTBF: Mean time between failures
  • MTBUR: Mean time between unscheduled removals
  • MTTF: Mean time to failure
  • MVA: Minimum vectoring altitude
  • MVFR: Marginal visual flight rules
  • MZFW: Maximum Zero Fuel Weight

N
  • N1: Low Pressure rotor (spool) speed (see Jet engine)
  • N2: High Pressure rotor (spool) speed (see Jet engine)
  • NAS: National Airspace System
  • NAV: Navigation receiver (normally VHF navigation receiver for VOR system.)
  • Navaid: Navigational aid
  • NAVCOMM, NAV/COM or NAV-COM: Combination navigation and communications equipment (normally VHF navigation receiver integrated with VHF communications transceiver).
  • NAVSTAR-GPS: NAVigation Satellite Timing And Ranging (The formal name for the space-borne or satellite navigation system)
  • NCAT: National Center for Aviation Training
  • NCATT: National Center for Aircraft Technician Training
  • ND: Navigation display
  • NDB: Non-directional radio beacon
  • NFF: No fault found
  • NGS: Nitrogen Generation System, found in aircraft to reduce fire risk in fuel tanks.
  • NHA: Next Higher Assembly.
  • NM or NMI: Nautical mile
  • NORDO: No radio
  • NoTAM: Notice to Airmen
  • NOZ: Normal Operating Zone (Parallel runways operation)
  • NPA: Non-precision approach (Instrumental approach)
  • NVD: Night vision device
  • NVG: Night vision goggles
  • NTSB: National Transportation Safety Board
  • NTZ: No-Transgression Zone (Parallel runways operation)

O
  • OAS: Obstacle Assessment Surface
  • OAT: Outside air temperature
  • OBI: Omnibearing indicator (see CDI)
  • OBS: Omnibearing selector
  • OCC: Operations control center
  • OCH: Obstacle Clearance Height
  • OFZ: Obstacle Free Zone
  • OIS: Obstacle Identification Surface (Instrumental procedures)
  • OIS: Operational Information System
  • OM: Outer marker
  • OWE/OEW: Operating Weight Empty/Operating empty weight

P

Q
  • QAR: Quick Access Recorder
  • QNH: Barometric pressure adjusted to sea level
  • QRH: Quick Reference Handbook

R

S

T

U

V

W

X

Y

Z
  • ZFW: Zero Fuel Weight

See also

References
  1. "CNS/ATM Systems" (PDF). International Civil Aviation Organization.
  2. British Aircraft Corporation now British Aerospace
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.