3D

Three-Dimensional

3G

Third Generation

3GCN

Third Generation Cabin Network

4D

Four-Dimensional

A

Ampere(s)

A

Autotuned Navaid

A

Aspect Ratio Of Wing

A

Helicopter Rotor Disk Area

a

Alpha-Angle Of Attack

A&P

Airframe And Power Plant

A/B

Autobrake

A/C

Aircraft

A/D

Analog-To-Digital

A/G

Air/Ground; Air To Ground

a/l

Airline

A/L

Autoland

A/N

Alphanumeric

A/P

Autopilot

A/T

Autothrottle

AAA

Anti-Aircraft Artillery

AAC

Aeronautical Administration Communications

AAC

Airline Administrative Communications

AAF

Airway Facilities Service

AAIB

Air Accident Investigation Branch (UK Equivalent of NTSB)

AAIPT

Again Aircraft Integrated Product Team

AAIU

Air Accident Investigation Unit

AAL

Above Aerodome Level

AALC

Autonomous Approach Landing Capability

AAMP

Advanced Architecture Microprocessor

AAS

Advanced Automation System

AATT

Advanced Aviation Transportation Technology

ABC

Automatic Brightness Control

ABC

Activity-Based Costing

A-BPSK

Aviation Binary Phase Shift Keying

AC

Advisory Circular

AC

Alternating Current

AC2

Dolby Surround

ACAA

Air Carrier Association Of America

ACAC

Air-Cooled Air Cooler

ACAMS

Aircraft Condition Analysis Management System

ACARS

Aircraft Communications Addressing And Reporting System

ACAS

Airborne Collision Avoidance System

ACC

Active Clearance Control

ACC

Area Control Center

ACC

Airspace Control Center

ACC

Advanced Carbon/Carbon

ACCHL

Associated Control Channel, L-Band

ACD

Automatic Conflict Detection

ACDO

Air Carrier District Office

ACE

Actuator Control Electronics

ACE

Advanced Certification Equipment

ACF

Area Control Facility

ACG

Assessment Compliance Group

ACIPS

Airfoil Cowl Ice Protection System

ACK

Acknowledgment

ACM

Air Combat Maneuvering

ACMF

Airplane Condition Monitoring Function

ACMP

Alternating Current Motor Pump

ACMS

Aircraft Condition Monitoring System

ACNSS/

Advanced Communication/ Navigation/Surveillance System

ACP

Audio Control Panel

ACS

Active Control System

ACS

Audio Control System

ACT

Active

ACTC

Airport Traffic Control Towers

ACTD

Advanced Concept Technology Demonstration

ACU

Aircraft Communications System

ACU

Apron Control Unit

ACU

Autopilot Control Unit

ACU

Antenna Control Unit

AD

Airworthiness Directives

ADA

A Computer Programming Language

ADAS

Automated Weather Observing System Data Acquisition System

ADB

Airport Data Base

ADC

Air Data Computer

ADC

Air Defense Command

ADE

Application Development Engineer

ADF

Automatic Direction Finding

ADG

Air-Driven Generator

ADI

Attitude Director Indicator

ADIRS

Air Data Inertial Reference System

ADIRU

Air Data Inertial Reference Unit

ADL

Aeronautical Data Link

ADLP

Aircraft Data Link Processor (Mode S)

ADLP

Airborne Data Link Protocol

ADM

Air Data Module

ADMS

Airline Data Management System

ADN

Aircraft Data Network

ADO

Airline Dispatch Office

ADO

Airport District Office

ADP

Air Driven Pump

ADR

Address

ADR

Advanced Data Research

ADR

Alternative Dispute Resolution

ADRAS

Airplane Data Recovery And Analysis System

ADS

Automatic Dependent Surveillance

ADS

Air Data System

ADSA

Automatic Dependent Surveillance- Automation

ADS-A

Automatic Dependent Surveillance- Addressed

ADS-B

Automatic Dependent Surveillance- Broadcast

ADS-C

Ads Contract

ADSEL

Address Selective

ADSP

Automatic Dependent Surveillance Panel

ADSSG

Ads Study Group (ICAO)

ADSU

Automatic Dependent Surveillance Unit

ADT

Air Data Tester

AEA

Aircraft Electronics Association

AECU

Audio Electronic Control Unit

AED

Algol Extended For Design

AEEC

Airlines Electronic Engineering Committee (ARINC)

AEP

ARINC Engineering Practices

AEP

Audio Entertainment Player

AERA

Automated En Route Air Traffic Control

Aero

B-Gan Next Generation Broadband

AES

Aircraft Earth Station (Inmarsat)

AESA

Active Electronically Scanned Array

AESS

Aircraft Environment Surveillance System

AEW

Airborne Early Warning

AF

Airway Facilities

AF

Air Force

AFB

Air Force Base

AFC

Aeronautical Frequency Committee (AEEC)

AFC

Automatic Frequency Compensation

AFC

Automatic Frequency Control

AFCAS

Automatic Flight Control Augmentation System

AFCS

Automatic Flight Control System

AFD

Adaptive Flight Display

AFD

Autopilot Flight Director

AFDC

Autopilot Flight Director Computer

AFDS

Autopilot Flight Director System

AFDX

Avionics Full-Duplex Ethernet Switch

AFEPS

ACARS Front-End Processing System

AFGCS

Automatic Flight Guidance And Control System

AFI

Authority Format Identifier

AFIRS

Autonomous Flight Information Collection And Reporting System

AFIS

Airborne Flight Information System

AFIS

Airbus In-Flight Information Service

AFIS

Automatic Flight Information Service

AFIS

Automated Flight Inspection System

AFM

Aircraft Flight Manual

AFMC

Air Force Material Command

AFMS

Automatic Flight Management System

AFN

Air Traffic Services Facilities Notification

AFP

Airspace Flow Program

AFRL

Air Force Research Lab

AFRSI

Advanced Flexible Reusable Surface Insulation

AFS

Additional Secondary Factors

AFS

Aeronautical Fixed Service (ICAO)

AFS

Automatic Flight System

AFSK

Audio Frequency Shift Keying

AFSS

Automated Flight Service Stations

AFTN

Aeronautical Fixed Telecommunications Network

AFTRCC

Aerospace And Flight Test Radio Coordinating Council

AFU

Artificial Feel Unit

AGACS

Automatic A/G Communication System

AGAE

A/G Applications Engineering

AGATE

Advanced General Aviation Transport Experiments (Nasa)

AGC

Automatic Gain Control

AGCOS

A/G Communication Services

AGCS

Air-Ground Communication System

AGCS

Air-Ground Communication Systems

AGCU

Auxiliary Generator Control Unit

AGDL

A/G Data Link

AGIS

A/G Intermediate System

AGL

Above Ground Level

AGM

Air-To-Ground Missile

AGR

A/G Router

AGRM

Air/Ground Router-Regional Manager

AGS

A/G System

AGSS

ACARS Ground System Standard (AEEC)

AGTS

A/G Test Station

AGVS

A/G Voice Sub-Network

AGW

Arts Gateway

AH

Attack Helicopter

AHC

Attitude Heading Computer

AHMS

Aircraft Health Monitoring System

AHRS

Attitude Heading Reference System

AI

Alternative Interrogator

AI

Application Interface

AI

Area Incursion

AI

Artificial Intelligence

AI

Access Identifier

AIA

Aerospace Industries Association

AIAA

American Institute Of Aeronautics And Astonautics

AIC

Aeronautical Information Circular

AIDC

Air Traffic Services Interfacility Data Communications

AIDS

Aircraft/Airborne Integrated Data System

AIED

Aeronautical Industry Engineering And Development

AIEM

Airlines International Electronic Meeting

AIFSS

Automated International Flight Service Stations

AIL

Aileron

AIM

Air Intercept Missile

AIM

Airmans Information Manual

AIMS

Airplane Information Management System

AIMS

Airport Information Management System

AINSC

Aeronautical Industry Service Communication

AIO

Analog Input/Output

AIP

Aeronautical Information Publication

AIP

Analog Input

AIP

Airport Improvement Program

AIRAC

Aeronautical Information Regulation And Control

AIRCOM

Digital Air/Ground Communications Service (SITA)

AIRMET

Airman'S Meteorological Information

AIRO

Analog Input/Reference Output

AIS

Aeronautical Information Service

AIS

Automatic Information Services (Eurocontrol)

AISG

Applications Interface Sub-Group (Iata)

AIV

Accumulator Isolation Valve

AJPS

Afeps Journal Processing System

ALC

Airline Link Control

ALC

Asynchronous Link Control

ALC

Automatic Level Control

ALCM

Air-Launched Cruise Missile

ALD

Hold Altitude Hold Mode

ALMDS

Airborne Laser Mine Detection System

ALPA

Air Line Pilots Association

ALPS

Automatic Line Protection Service

ALS

Application Layer Structure

ALT

Airborn Link Terminal

ALT

Altitude/Alternate

ALTM

Altimeter

ALTN

Alternate

ALTN

Alternate (Airport)

ALTRV

Altitude Reservation

ALTS

Altitude Select

ALU

Arithmetic And Logic Unit

AM

Access Module

AM

Amplitude Modulation

AMASS

Airport Movement Area Safety System

AMC

Air Mobility Command

AMC

Auxiliary Maintenance Computer

AMC

Avionics Maintenance Conference

AMCP

Aeronautical Mobile Communications Panel

AMD

Advisory Map Display

AME

Amplitude Modulation Equivalent

AMI

Airline Modifiable Information

AMIS

Aircraft Management Information System

AMLCD

Active Matrix Liquid Crystal Display

AMOSS

Airline Maintenance And Operation Support System

AMP

Audio Management Panel

AMP

Avionics Modernization Program

AMPL

Amplifier

AMPR

Airframe Manufacturers Planning Report

AMRAAM

Advanced Medium-Range Air-To-Air Missile (Now Aim-120)

AMS

ARINC Maintenance Service

AMS

Apron Management Service

AMS

Avionics Management Service

AMS

Acquisition Management System

AMS(R)S

Aeronautical Mobile Satellite (Route) Service

AMSS

Aeronautical Mobile Satellite Service

AMTOSS

Aircraft Maintenance Task Oriented Support System

AMTS

Aeronautical Message Transfer Service

AMU

Audio Management Unit

AMU

ACARS/Avionics Management Unit

AMUX

Audio Multiplexer

ANA

All Nippon Airways

ANC

Air Navigation Commission (ICAO)

ANDC

Airport And Navigation Data Compiler

ANFR

Agence Nationale Des Frequences

ANFS

Aircraft Network And File Server

ANICS

Alaskan Nas Interfacility Communication

ANLP

ARINC Network Layer Protocol

ANP

Actual Navigation Performance

ANP

Air Navigation Plan/Performance

A-NPA

Advanced Notice Of Proposed Amendment

ANR

Active Noise Reduction

ANS

Air Navigation System

ANS

Ambient Noise Sensor

ANSI

American National Standards Institute

ANSIR

Advanced Navigation System Inertial Reference

ANSP

Air Navigation Service Providers

ANSU

Avionics Network Server Unit

ANTC

Advanced Networking Test Center

AO

Acronymic Obfuscation

AOA

ACARS Over Avlc

AOA

Office Of The Administrator (FAA)

AOA

Angle Of Arrival

AOA

Angle Of Attack

AOAS

Advanced Oceanic Automation System

AOC

Airport Obstruction Chart

AOC

Airline Operational Control Center

AOC

Airport Operational Communications

AOC

Aircraft Operational Control

AOC

Airline Operational Control

AOC

Aeronautical Operational Control

AOC

Airline Operations Center

AOCC

Airline Operations Control Center

AODB

Airport Operational Database

AODC

Age Of Data, Clock (GPS)

AODE

Age Of Data, Ephemeris (GPS)

AOG

Aircraft On Ground

AOHE

Air/Oil Heat Exchanger

AOM

Aircraft Operating Manual

AOP

Analog Output

AOP

Aeronautical Osi Profile

AOP

Airline Operational Procedure

AOPA

Aircraft Owners And Pilots Association

AOR

Area Of Responsibility

AOR

Atlantic Ocean Region

AOR-E

Atlantic Ocean Region-East

AOR-W

Atlantic Ocean Region-West

AP

Airport Location (ACARS/Afeps)

APA

Autopilot Amplifier

APA

Allied Pilots Association

APANPIRG

Asia/Pac Air Navigation Planning & Implementation Regional Group

APB

Auxiliary Power Breaker

APB

Acquisition Program Baseline

APC

Aeronautical Passenger Communication

APC

Aeronautical Public Correspondence

APC

Autopilot Computer

APCO

Association Of Public Safety Communications Officials

APEX

Application/Executive Software

APFA

Association Of Professional Flight Attendants

APFDS

Autopilot Flight Director System

API

Application Programming Interface

APIM

ARINC Ia Project Initiation/Modification

APIRS

Attitude And Positioning Inertial Reference System

APL

Applied Physics Laboratory

APLCs

Airport Performance Laptop Computers

APM

Approach Path Monitor

APMS

Automated Performance Measurement System

APN

ARINC Packet Network

APP

Approach Control

APPR

Approach

APR

Actual Performance Reserve

APRL

Atn Profile Requirement List

APU

Auxiliary Power Unit

APUC

Auxiliary Power Unit Controller

APX

Application/Executive Software

AQF

Avionics Qualification Facility

AQP

Advanced Qualification Program

AQP

Avionics Qualification Procedure/Program

A-QPSK

Aeronautical Quadrature Phase Shift Keying

AQS

Advanced Quality System

ARAC

Aviation Rulemaking Advisory Committee (FAA)

ARB

Arbitrary Waveform Generator

ARD

Advanced Requirement Definition

ARDEP

Analysis Of Research & Development In Eurocontrol Programs

ARF

Airline Risk Factor

ARM

Area Regional Manager

ARM

Anti-Radiation Missile

ARMC

Area Regional Maintenance Center

ARP

Air Data Reference Panel

ARPA

Previous/Alternate Name For Darpa

ARPANET

Internet Predecessor

ARTAS

Atm Surveillance Tracker And Server

ASAS

Aviation Safety Analysis System

ASAS

Aircraft Separation Assurance System (Aeec)

ASC

Aircraft System Controller

ASC

Aural Synthesizer Card

ASCB

Avionics Standard Communication Bus

ASCII

American Standard Code For Information Interchange

ASCPC

Air Supply And Cabin Pressure Controllers

ASCS

Air Supply Control System

ASCU

Anti-Skid Control Unit

ASD

Aircraft Situation Display

ASDAR

Aircraft-To-Satellite Data Relay

ASDB

Aircraft Specific Database

ASDE

Airport Surface Detection Equipment

ASDEX

Airport Surface Detection Equipment, Model X

ASDL

Aeronautical Satellite Data Link

ASDR

Airport Surface Detection Radar

ASE

Altimetry System Error

ASECNA

Agency For Security Of Aerial Navigation In Africa And Madagascar

ASG

ARINC Signal Gateway

ASI

Airspeed Indicator

ASI

Avionics System Integration

ASIC

Application Specific Integrated Circuit

ASL

Above Sea Level

ASM

Airspace Management

ASM

Autothrottle Servo Motor

ASM

Air-To-Surface Missile

ASME

American Society Of Mechanical Engineers

A-SMGCS

Advanced Surface Movement Guidance And Control Systems

ASOR

Allocating Safety Objectives And Requirements

ASOS

Automated Surface Observation System

ASP

ACARS Sub-Network Protocol

ASP

Altitude Set Panel

ASP

Aeronautical Fixed Service Systems Planning (Afs)

ASP

Acquisition Strategy Paper

ASP

Arrival Sequencing Program

ASPJ

Airborne Self-Protection Jammer

ASPP

Application Specific Programmable Processor

ASR

Airport Surveillance Radar

ASRAAM

Advanced Short-Range Air-To-Air Missile

ASRS

Aviation Safety Reporting System

ASSTC

Aerospace Simulation And Systems Test Center

ASSV

Alternate Source Selection Valve

ASTA

Airport Surface Traffic Automation

ASTERIX

All Purpose Structured Eurocontrol Radar Information Exchange

ASTF

Airspace System Task Force

ASTM

American Society For Testing And Materials

ASTOR

Airborne Stand-Off Radar (Uk)

ASTOVL

Advanced Short Take-Off/Vertical Landing (Jsf/F-35 Predecessor Program)

ASV

Alternate Servo Valve

ASVI

Avionics Serial Video Interface

ASW

Anti-Submarine Warfare

AT

Air Transport

AT

At An Altitude

AT/SC

Autothrottle/Speed Control

ATA

Actual Time Of Arrival

ATA

Air Transport Association

ATA

Air Transport Association Of America

ATAS

Aviation Traffic And Application Software

ATB

Advanced Technology Bomber (B-2 Predecessor Program)

ATC

Advanced Technology Center

ATC

Air Traffic Control

ATCA

Air Traffic Control Association

ATCBI

Atc Beacon Interrogator

ATCC

Area And Terminal Control Center

ATCRBS

Atc Radar Beacon System

ATCSS

Atc Signaling System

ATCT

Air Traffic Control Tower

ATD

Advanced Technology Demonstration

ATDL

Air Transport Data Link

ATE

Automatic Test Equipment

ATE

Avionics Test And Evaluation

ATF

Advanced Tactical Fighter (F-22 Predecessor Program)

ATFM

Air Traffic Flow Management

ATG

Advanced Concept Technology Demonstration

ATHR

Autothrust System

ATI

Airborne Tracker Illuminator

ATIDS

Airport Surface Target Identification System/Service

ATIS

Airport Traffic Information System

ATIS

Automated Terminal Information Service

ATIS

Automatic Terminal Information Service

ATIS-B

Automatic Terminal Information Service - Broadcast

ATL

Autothrottle Limit

ATLAS

Abbreviated Test Language For Avionics Systems

ATM

Air Traffic Management

ATM

Asynchronous Transfer Mode

ATM

Dss Atm Decision Support Service

ATMAS

Atm Automation System

ATMB

Air Traffic Management Bureau

ATMS

Area Navigation, Test And Management Services

ATN

Aeronautical Telecommunication Network

ATNE

Atn Engineering

ATNP

Atn Panel

ATO

Air Traffic Operations

ATO

Air Traffic Organization (FAA)

ATOP

Advanced Technologies And Oceanic Procedures

ATP

Acceptance Test Procedure/Plan

ATPAC

Air Traffic Procedures Advisory Committee (FAA)

ATR

Air Transport Radio: ARINC Form-Factor/Standard Case Dimensions; 1

ATR

Acceptance Test Report

ATR

Air Transport Racking

ATS

Air Traffic Services

ATS

Air Turbine Starter

ATS

Autothrottle System

ATSC

Air Traffic Services Communication

ATSGF

Air Traffic Services Geographic Filter

ATSMP

Air Traffic Services Message Processor

ATSO

Air Traffic Services Organization

ATSP

Air Traffic Services Provider

ATSRAC

Aging Transport Systems Rulemaking Advisory Committee

ATSRAC

Aging Transport Systems Rulemaking Advisory Committee (FAA)

ATSU

Air Traffic Services Unit

ATWR

Apron Tower (And Operator)

AUSRIRE

All Union Scientific Research Institute Of Radio Equipment: Cis (Former Soviet) Agency

AUX

Auxiliary

AVC

Aviation VHF Car Rental Availability (Messages)

AVH

Aviation VHF Hotel Availability (Messages)

AVLAN

Avionics Local Area Network

AVLC

Aviation VHF Link Control

AVM

Airborne Vibration Monitor

AVN

Avionics

AVOD

Audio And Video Channels On Demand

AVOL

Aerodrome Visibility Operational Level

AVPAC

Aviation VHF Packet Communications

AVS

Aviation VHF Seat Availability (Messages)

AVS

Avionics Management System

AWACS

Airborne Warning And Control System

AWAS

Automated Weather Advisory Station

AWG

American Wire Gauge

AWIN

Advanced Weather Information System

AWIN

Aviation Weather Information

AWIPS

Advanced Weather Interactive Processing System

AWLU

Aircraft Wireless Lan Unit

AWM

Auto Warning Mixer

AWO

All Weather Operations

AWOP

Awo Panel

AWOS

Automated/Airport Weather Observing System

AWR

Aviation Weather Research

AZ

Azimuth: Angular Measurement In Horizontal Plane

b (beta)

Sideslip Angle; Prandtl-Glauert Compressibility Correction

BBML

Broadband Multi-Link

BDA

Bomb Damage Assessment

BDA

Bomb (Or Battle) Damage Assessment

BDMIS

Business Data Management And Invoicing System

BDS

Comm-B Designation Subfield

BEA

Bureau D'Enquetes Accidents: French Equivalent Of Ntsb

BEP

Back-End Processor

BEPMS

Bep Management System

BER

Bit Error Rate

BFE

Buyer Furnished Equipment

BFL

Balanced Field Length

BFO

Beat Frequency Oscillator

BFO

Blazing Flash Of The Obvious (Dod)

BGARS

Basic General Aviation Research Simulator

BGI

Bus Grant Inhibit

BGP

Border Gateway Protocol

BI

Burn-In

BiGs

Bilingual Ground Station (ACARS And VDL Mode 2)

Binary

Base-2 Counting System

BINGO

Fuel State At Which A Pilot Must Begin To Return To Base

BIS

Boundary Intermediate System

BISMS

Bis Management System

BIST

Built-In Self-Test

BiSync

Binary Synchronous Control

BIT

Built-In Test

Bit

A Binary Digit

BIT

Built-In Test

BITE

Built-In Test Equipment

BIU

Bus Interface Unit

BL

Boundary Layer

BLK

Block/Black

BMI

Bismaleimide (High Temp Composite Material)

BMV

Brake Metering Valve

B-NAV

Basic Area Navigation

BNR

Binary

BNS

Boundary Notification System (Squitters)

BOC

Binary Offset Carrier

BOC

Bottom Of Climb

BOP/COP

Bit-Oriented Protocol/Character-Oriented Protocol

BP

Bite Processor

BPCU

Bus Power Control Unit

BPL

Broadband Over Powerlines

BPS

Bits Per Second

BPSK

Binary Phase Shift Keying

BR

Bridge

BRG

Bearing

BRI

Basic Rate Interface

BRNAV

Basic Area Navigation

BRT

Brightness

BSC

Binary Synchronous Communication

BSCU

Brake System Control Unit

BSN

Backbone Sub-Network

BSP

Board Support Package

BSU

Beam Steering Unit

BSU

Bypass Switch Unit

BTB

Bus Tie Breaker

BTMU

Brake Temperature Monitor Unit

BU

Backup

BUEC

Bu Emergency Communications

BUFR

Binary Universal Form For Communication Representation

BWAN

Bu Wide Area Network

Byte

A Grouping Of Eight Bits

C&C

Command And Control (Also C2)

C&W

Control And Warning

C/A

Code Course Acquisition Code (GPS)

C/NO

Carrier-To-Noise Density Ratio

C/R

Command/Response

C/SOIT

Communications/Surveillance Operational Implementation Team

C/UT

Code/Unit Test

C2

Command And Control

C41

Computers And Intelligence

C4ISR

Computers, Intelligence, Surveillance And Reconnaissance

CA

Conflict Alert

CAA

Civil Aviation Administration

CAA

Civil Aviation Authority

CAAC

Civil Aviation Administration Of China

CAAS

Common Avionics Architecture System

CAASD

Center For Advanced Aviation System Development

CAASD

Center For Advanced Aviation System Development (Mitre Corp.)

CAB

Civil Aeronautics Board

CAC

Caution Advisory Computer

CACP

Cabin Area Control Panel

CAD

Computer Aided Design

CADAG

Communications, Automation And Data Link Applications Group

CADAM

Computer Augmented Design And Manufacturing (Early Lockheed Cad System)

CADC

Central Air Data Computer (An Analog System)

CADS

Centralized Automatic Dependent Surveillance

CAE

Component Application Engineer

CAGE

Commercial Avionics GPS Engine

CAH

Cabin Attendant Handsets

CAI

Caution Annunciator Indicator

CAIV

Cost As An Independent Variable

CAL

China Airlines

CALSEL

Variation Of Selcal System

CAM

Computer Aided Manufacturing

CAN

Controller Area Network

CANbus

Control Area Network

CANSO

Civil Air Navigation Services Organization

CAOC

Combined Air Operations Center

CAP

Civil Air Patrol

CAP

Combat Air Patrol

CAPA

Coalition Of Airline Pilots Association

CAPS

Commercial Airliner Protection System

CARE

Cooperative Actions On R&D In Eurocontrol

CAS

Collision Avoidance System

CAS

Commercially Available Software

CAS

Close Air Support

CAS

Calibrated Airspeed

CASA

Controller Automated Spacing Aid

CASE

Computer-Aided Software Engineering

CASR

Civil Aviation Safety Regulations

CAT

Category

CAT

Clear Air Turbulence

CAT

Computer Aided Testing

CAT

Categories (I, Ii, Iiia/B/C) Approach

CATIA

Computer-Aided, Three-D Interactive Application (High-End Cad System)

CAW

Carrier Air Wing

CBA

Cost/Benefit Analysis

CBT

Computer-Based Training

CC

Connection Confirm

CC

Call Control

CCA

Circuit Card Assembly

CCB

Converter Circuit Breaker

CCB

Configuration Control Board

CCC

Command, Control, & Communications ("C-Cubed")

CCD

Category Class Diagram

CCD

Cursor Control Device

CCD

Charged Coupled Device

CCD

Coherent Change Detection

CCIR

International Radio Consultative Committee

CCITT

Consultative Committee International Telephone And Telegraph

CCP

Consolidated Control Panel

CCS

Cabin Communication System

CCS

Common Core System

CCTV

Closed-Circuit Television

CD

Carrier Detect

CD

Chrominance Difference

CD

Compact Disk

CDA

Continuous Descent Approach Arrival

CDA

Coordinating Design Authority

CDAM

Centralized Data Acquisition Module

CDAM

Common Data Acquisition Module

CDG

Configuration Database Generator

CDI

Course Deviation Indicator

CDM

Collaborative Decision-Making

CDMS

Cdm System

CDMS

Control And Data Management System

CDP

Continuous Data Program

CDR

Critical Design Review

CDRL

Contract Data Requirements List

CDS

Central Dispatch System

CDS

Cockpit Display Systems

CDS

Common Display System

CDSS

Cockpit Door Surveillance System

CDT

Controlled Departure Time

CDTI

Cockpit Display Of Traffic Information

CDU

Control Display Unit

CDV

Compressed Digital Video

CEC

Cooperative Engagement Capability

CEI

Cabin Equipment Interfaces

CEPT

Conference Europeene Des Postes Et Telecommunications

CER

Cost Estimating Relationship

CF

Change Field

CFD

Computational Fluid Dynamics

CFDIU

Centralized Fault Display Interface Unit

CFDS

Central Fault Display System

CFDU

Configurable File Data Unit

CFIT

Controlled Flight Into Terrain

CFM

Cubic Feet Per Minute

CFM

Configuration Management

CFMU

Central Flow Management Unit

CFS

Cabin File Server

CG

Center Of Gravity

CHI

Computer/Human Interface

CHIS

Center Hydraulic Isolation System

CI

Configuration Item

CI

Cabin Interphone

CID

Category Interaction Diagram

CIDIN

Common ICAO Data Interchange Network

CIDS

Cabin Interphone Distribution System

CIE

Commission Internationale De I ’Eclairage

CIGS

Copper-Indium-Gallium-Diselenide

CIP

Capital Investment Plan

CIP

Convergence & Implementation Program (Eurocontrol)

CIS

Common Information Services

CIS

Corporate Information System

CLIN

Contract Line Item Number

CLNP

Connectionless Network Protocol

CLNS

Connectionless Network Service

CLTP

Connectionless Mode Transport Protocol

CM

Context/Configuration Management

CMC

Central Maintenance Computer

CMCF

Cmc Function

CMCS

Cmc System

CMD

Command

CMF

Common Message Format

CMGT

Contract Management

CMM

Capability Maturity Model

CMM

Component Maintenance Manual

CMM

Common Mode Monitor

CMN

Control Motion Noise

CMOS

Complementary Metal Oxide Semiconductor

CMP

Configuration Management Plan

CMS

Cabin Management System

CMU

Communication Management Unit

CNA

Center For Naval Analysis (Think-Tank For Usn)

CND

Can Not Duplicate

CNDB

Customized Navigation Database

CNES

Centre National D’Etudes Spatiales

CNI

Communications, Navigation And Identification

CNP

Com/Nav/Pulse

CNS

Communication, Navigation Surveillance

CNS/ATM

Communications, Navigation, Surveillance/Air Traffic Management

CNSI

Com/Nav/Serveillance/Identification

CNUS

Cabin Network Server Unit

CO

Commanding Officer

COA

Certificate Of Authorization

COD

Carrier On-Board Delivery

CODEC

Coder/Decoder

COIN

Counter-Insurgency

COM

Cockpit Operating Manual

COM

Communications

COM/MET/OPS

Communications/Meterological/Operations

COMINT

Communications Intelligence

COMINT/DF

Comint Direction Finding

COMM

Communications

COMSAT

Communications Satellite Corp.

CON

Continuous

CONOPS

Concept Of Operations

CONUS

Continental United States

COP

Character-Oriented Protocol

COTP

Connection-Oriented Transport Protocol

COTR

Contracting Officer’S Technical Representative

COTS

Commercial Off-The-Shelf (No Development Required)

COTS

Commercial Orbital Transportation Services (Nasa Program For Manned Space Launcher)

CP

Central Processor

CP

Conflict Probe

CP

Control Panel

CPA

Closest Point Of Approach

CPA

Coalition Of Airline Pilots Associations

CPA

Collision Prediction And Alerting

CPC

Controller-Pilot Communications

CPC

Cabin Pressure Controller

CPC

Cursor Position Control

CPCI

Computer Program Configuration Item

CPCS

Cabin Pressure Control System

CPDLC

Controller Pilot Data Link Communications

CPDLC

Controller-Pilot Data Link Communications

CPE

Circular Position Error

CPI

Continuous Process Improvement

CPM

Core Processing Module

CPM

Critical Path Method

CPS

Cabin Pressure Sensor

CPS

Central Processing System

CPU

Central Processing Unit

CR

Change Of Request

CR

Contrast Ratio

CR

Connection Request

CRA

Conflict Resolution Advisory

CRAF

Civil Reserve Air Fleet

CRC

Cyclic Redundancy Checking/Code

CRD

Current Routing Domain

CRDA

Cooperative Research And Development Agreement

CRISD

Computer Resources Integrated Support Document

CRISTAL

Cooperative Validation Of Surveillance Techniques And Applications

CRM

Crew/Cockpit Resource Management

CRM

Collision Risk Model

CRM

Crew Resource Management

CRMA

Code Reuse Multiple Access

CRPA

Controlled Reception Pattern Antenna

CRR

Cutover Readiness Review

CRS

Course

CRT

Cathode Ray Tube

CRZ

Cruise

CS

Common Service

CS

Commercial Service

CSC

Common Signaling Channel

CSC

Cargo System Controller

CSC

Computer Software Component

CSCI

Computer Software Configuration Item

CSCP

Cabin System Control Panel

CSDB

Commercial Standard Data Bus

CSDS

Cargo Smoke Detector System

CSEU

Control Systems Electronics Unit

CSF

Command/Status Frame

CsLEOS

Real Time Operating System (Os)

CSMA

Carrier Sense Multiple Access

CSMA/CD

Carrier Sense Multiple Access With Collision Detection

CSMM

Crash Survivable Memory Modules

CSMU

Cabin System Management Unit

CSPA

Closely Spaced Parallel Approach

CSS

Cabin Systems Subcommittee

CSTAC

Commercial Space Transportation Advisory Committee (FAA)

CSU

Channel Service Unit

CSU

Configuration Strapping Unit

CSU

Computer Software Unit

CTA

Control Area

CTA

Controlled Time Of Arrival

CTAF

Common Traffic Advisory Frequency

CTAI

Cowl Thermal Anti-Icing

CTAS

Center Tracon Automation System

CTC

Cabin Temperature Controller

CTD

Cabin Training Device

CTL

Control

CTMO

Centralized Air Traffic Flow Management Organization

CTOL

Conventional Take-Off And Landing

CTR

Control Zone

CTR

Center

CTRD

Configuration Test Requirements Document

CTRL

Control

CTS

Clear To Send

CTS

Conformance Test Suite

CTS/TCTS

Combat Training System/Tactical Combat Training System

CTU

Cabin Telecommunications Unit

CU

Combiner Unit (Hud)

CU

Channel Utilization

CU

Control Unit

CUG

Closed User Group

CUTE

Common Use Terminal Equipment

CV

Aircraft Carrier, Heavier-Than-Air Aircraft

CV/DFDR

Cockpit Voice And Digital Flight Data Recorder

CVN

Aircraft Carrier, Heavier-Than-Air, Nuclear Powered

CVR

Cockpit Voice Recorder

CVRCP

Cockpit Voice Recorder Control Panel

CW

Continuous Wave

CW

Clockwise

CWI

Continuous Wave Interference

CWP

Central Weather Processor

CWP

Controller/Ed Working Position

CWS

Control Wheel Steering

d

Delta-Deflection Of Controls

D

Delta-Wing Sweep

D8PSK

Differential 8-Phase-Shift Keying

DA

Descent Advisor

DA

Design Authority

DA

Digital-To-Analog

DAB

Defense Acquisition Board

DABS

Discrete Addressable Beacon System

DAC

Digital-To-Analog Converters

DADC

Digital Air Data Computer

DADS

Digital Air Data System

DAISS

Digital Airborne Intercommunication Switching System

DAP

Digital Service Access Product

DAP

Direct Action Penetration

DAP

Download Of Aircraft Parameter

DAPCA

Development And Procurement Cost Of Aircraft (Rand Cost Model)

DAPs

Downlink Aircraft Parameters

DAR

Data Access Recorder

DARC

Direct Access Radar Channel

DARP

Dynamic Aircraft Route Planning

DARPA

Defense Advanced Research Projects Agency

DAS

Digital Audio Subcommittee

DAS

Designated Alteration Station

DAS

Distributed Aperture System

DASS

Defensive Aids Sub-System

DATCOM

Data Compendium (Usaf Aerodynamics Methodology Report)

D-ATIS

Digital Automatic Terminal Information Service

DB

Database

dB

Decibel

dBA

Db Adjusted

DBI

Downlink Block Identifier

dBI

Db Referenced To An Isotropic Antenna

dBI

Decibels Above Isotopic Circular

dBM

Db Below 1 Milliwatt

DBS

Direct Broadcast Satellite

DBU

Database Unit

DBU

Dial Backup

dBW

Db-Watts Or Referenced To 1 Watt

DC

Disconnect Confirm

DC

Direct Current

DCAS

Digital Control Audio System

DCD

Double Channel Duplex

DCE

Data Communications Equipment

DCGF

Data Conversion Gateway Function

DCL

Departure Clearance (European)

DCM

Digital Coherent Mute

DCMC

Defense Contract Management Command

DCMF

Data Communication Management Function

DCMS

Data Communication Management System

DCN

Document/Drawing/Design Change Notice

DCP

Data Communication Process

DCP

Display Control Panel

DCPR

Defense Contractors Planning Report

DCS

Double Channel Simplex

DCU

Data Concentration Unit

DCV

Directional Control Valve

DD

Data Delivery

DDA

Digital Differential Analyzer

DDD

Dual Disk Drive

DDM

Difference In Depth Of Modulation

DDP

Declarations Of Design And Performance

DDR

Draft Document Review

DDR

Double Data Rate

DDRMI

Digital Distance Radio Magnetic Indicator

DDS

Data Link Delivery Of Expected Taxi Clearances

DDS

Direct Digital Synthesizer

DDT

Downlink Data Transfer

DE-BPSK

Differentially Encoded Binary Phase Shift Keying

DECCA

A Navigation System Widely Used By European Shipping

DE-QPSK

Differentially Encoded Quaternary Phase Shift Keying

DER

Designated Engineering Representative

DERA

Defence Research And Evaluation Agency

DEU

Display Electronics Unit

DF

Direction Finding

DFA

Direction Finding Antenna

DFCS

Digital Flight Control System

DFDAF

Digital Flight Data Acquisition Function

DFDAMU

Digital Flight Data Acquisition Management Unit

DFDAU

Digital Flight Data Acquisition Unit

DFDR

Digital Flight Data Recorder

DFDU

Digital Flight Data Unit

DFGC

Digital Flight Guidance Computer

DFGS

Digital Flight Guidance System

DFIDU

Dual Function Interactive Display Unit

DFIU

Digital Flight Instrument Unit

DFOA

Difference of Frequency of Arrival

DFS

Digital Frequency Select

DFS

Deutsche Flugsicherung Gmbh (Germany)

DfT

Department For Transport (Uk)

DFU

Digital Function Unit

DG

Directional Gyro

DGNSS

Differential Global Navigation Satellite System

DGPS

Differential Global Positioning System

DH

Decision Height

DHCP

Dynamic Host Configuration Protocol

DHS

Department Of Homeland Security

DI

Data Interrupt

DIFAX

Digital Facsimile

DIGNU

Deeply Integrated Guidance And Navigation Unit

DIP

Data Interrupt Program

DIP

Dual In-Line Package

DIR

Director

DIR/INTC

Direct Intercept

DIRCM

Direct Infrared Countermeasures

DISA

Defense Information Systems Agency

DISC

Disconnect

DISCH

Discharge

DIST

Distance

DITS

Data Information Transfer System

diurnal

Day Or Night

DL

Data Link

DL/MSU

Data Loader/Mass Storage Unit

DLAP

Data Link Application Processor

DLC

Data Link Control

DLCI

Data Link Control Identifier

DLE

Data Link Entity

DLK

Data Link (Aeec)

DLK_Users

Data Link Users Forum

DLL

Data Link Layer

DLM

Data Link Management Unit

DLME

Data Link And Message Engineering

DLORT

Data Link Operational Requirements Team

DLP

Data Link Processor

DLS

Data Link Service/System

DLU

Download Unit

DM

Disconnected Mode

DMA

Direct Memory Access

DMD

Digital Memory Device

DME

Distance Measuring Equipment

DME/N

Dme Normal

DME/P

Dme Precision

DMM

Data Memory Module

DMS

Debris Monitoring Sensor

DMS

Data Link Management System

DMSO

Defense Modeling And Simulation Office

DMU

Data Management Unit

DoD

Department Of Defense

DOF

Degree Of Freedom

DoT

Department Of Transportation

D-OTIS

Digital Operational Terminal Information Service

DOTS

Dynamic Ocean Tracking System

DPI

Dots Per Inch

DPR

Dual Port Ram

DPSK

Differential Phase Shift Keying

DR

Dead Reckoning

DR

Deduced Reckoning

DRAM

Dynamic Random Access Memory

DREAMS

Disaster Response And Emergency Medical Services

DRER

Designated Radio Engineering Representative (FAA)

DRN

Document Release Notice

DRVSM

Domestic Reduced Vertical Separation Minimum

DSAD

Digital Service Access Device

DSARC

Defense System Acquisition Review Cycle

DSB

Double Side Band

DSB

Defense Science Board

DSB-AM

Dsb, Full Carrier Digital Amplitude Modulation

DSDU

Data Signal Display Unit

DSF

Display System Function

DSP

Data Link Service Provider

DSP

Departure Sequencing Program

DSP

Digital Signal Processor

DSP

Display Select Panel

DSP

Domain Specific Part

DSPDRV

Display Driver

DSR

Display System Replacement

DSS

Decision Support Services

DSU

Data Signaling Unit

DT&E

Development Test And Evaluation

DTD

Data Terminal Display

DTD

Document Type Definition

DTE

Data Terminal Equipment

DTED

Digital Terrain Evaluation Data

DTG

Distance-To-Go

DTM

Demonstration Test Milestone

DTMF

Dual Tone Multifrequency (Telephone)

DTOA

Difference of Time of Arrival

D-TOC

Digital Transfer Of Communications

DTP

Distributed Targeting Processor

DTPDU

Data Protocol Data Unit

DTRS

Data Transceiver Router Server

DTS

Digital Theatre Systems

DTU

Data Transfer Unit

DU

Display Unit

DUAT

Direct User Access Terminal

DUATS

Direct User Access Terminal System

DUST

Dual-Use Science And Technology

DVD

Digital Video Disc

DVF

Demonstration And Validation Facility

DVM

Digital Voltmeter

DVMC

Digital Video Map Computer

DVOR

Doppler Very High Frequency Omni Directional Range

DVRS

Digital Voice Recorder System

DWAN

Direct Wan

E&E

Electronics And Equipment

E/D

End-Of-Descent

E/O

Engine-Out

EAA

Experimental Aircraft Association

EACARS

Enhanced ACARS

EAD

Engine Alert Display

EAD

European Ais Data Base (Eurocontrol)

EADI

Electronic Attitude Director Indicator

EAFR

Enhanced Airborne Flight Recorder

EAI

Engine Anti-Ice

EAL

Evaluation Assurance Level

EAL-7

Evaluation Assurance Level-7

EANPG

European Air Navigation Planning Group

EAP

Engine Alert Processor

EAP

Experimental Aircraft Program (Eurofighter Typhoon Ef-2000 Predecessor)

EAROM

Electrically Alterable Rom

EARTS

En Route Automated Radar Tracking System

EAS

Equivalent Air Speed

EASA

European Aviation Safety Agency

EASIE

Enhanced Atm And Mode S Implementation In Europe

EASy

Enhanced Avionics System

EATCHIP

European Air Traffic Control Harmonization & Integration Program

EATMS

European Atm System (Eurocontrol)

EATRADA

European Atm Research And Development Association

EBR

Extended Bit Rate

EC

European Commission

ECAC

European Civil Aviation Conference

ECACNAV

Eurocontrol Navigation Web Site

ECAM

Electronic Caution Alert Module

ECC

Error Correcting Code

ECCM

Electronic Counter-Countermeasures

ECEF

Earth-Centered, Earth-Fixed

ECL

Emitter Coupler Logic

eCM

Equipment Conditioning Monitoring

ECM

Electronic Countermeasures

ECMP

Electronic Component Management System

ECN

Engineering Change Notice

ECO

Engineering Change Order

ECP

Eicas Control Panel

ECP

Engineering Change Proposal

ECS

Engineering Compiler System

ECS

Environmental Control System

ECS

Event Criterion Subfield

ECSL

Left Environmental Control System Card

ECSMC

Ecs Miscellaneous Card

ECSR

Right Environmental Control System Card

ECU

Electronic Control Unit

ED

Eicas Display

EDA

Electronic Design Automation

EDAC

Error Detection And Correction

EDARC

Enhanced Direct Access Radar Channel

EDC

Error Detection And Correction

EDDS

Electronic Document Distribution Service

EDI

Electronic Data Interchange

EDI

Engine Data Interface

EDIF

Engine Data Interface Function

EDIS

Emergency Digital Information Service

EDIU

Engine Data Interface Unit

EDMS

Electronic Data Management System

EDP

Electronic Data Processing

EDP

Engineering Development Pallet

EDP

Engine Driven Pump

EDS

Embedded Diagnostic System

EDS

Explosive Detection System

EDU

Electronic Display Unit

EDU

Electronic Display And Processing Unit

EE

Electrical Engineer

EE

Electronics Equipment

EEAS

Enhanced En-Route Automation System

EEC

Eurocontrol Experimental Center

EEC

Electronic Engine Control

EEPROM

Electrical Erasable Programmable Rom (Read Only Memory)

EEU

Elms Electronics Unit

EFA

European Fighter Aircraft (Eurofighter Typhoon Ef-2000 Predecessor)

EFB

Electronic Flight Bag

EFC

Expected Further Clearance

EFD

Electronic Flight Display

EFDAS

European Logical Flight Data Server (Eurocontrol)

EFDP

European Flight Data Processing (Eurocontrol)

EFIC

Electronic Flight Instrument Controller

EFIP

Electronic Flight Instrument Processor

EFIS

Electronic Flight Instrument System

EFIS

Cp Efis Control Panel

EGIHO

Expedited Ground-Initiated Handoff

EGIs

Embedded GPS/Ins

EGNOS

European Geostationary Overlay System

EGP

Exterior Gateway Protocol

EGPWS

Enhanced Ground Proximity Warning System

EGT

Exhaust Gas Temperature

EHF

Extremely High Frequency

EHP

Equivalent Horsepower

EHSI

Electronic Horizontal Situation Indicator

EHV

Electro-Hydraulic Valve

EIA

Electronic Industries Association

EIA

Electrical Institute Of America

EICAS

Engine Indication And Crew Alert System

EICASC

Eicas Controls

EIPI

Extended Initial Protocol Identifier

EIRP

Earth Incident Radiated Power

EIRP

Effective Isotropic Radiation Power

EIS

Electronic Instrument System

EIS

Engine Indication System

EIS

Environmental Impact Statement

EISA

Extended Industry Standard Architecture

EIU

Electronic Interface Unit

ELB

Electronic Logbook

ELEC

Electrical

ELINT

Electronic Intelligence

ELM

Extended Length Message

ELMS

Electrical Load Management System

ELS

Electronic Library System

ELT

Emergency Locator Transmitter

EM

Element Manager

EM

Electromagnetic

EMATS

Endurance Management Air Traffic System

EMC

Electromagnetic Compatibility

EMC

Entertainment Multiplexer Controller

EMD

Engineering, Manufacturing And Development

EMER

Emergency

EMI

Electromagnetic Interference

EMP

Electromagnetic Pulse

EMS

Emergency Medical Services

EMS

Engine Management System

EMU

Expansion Module Unit

ENG

Engine

ENOC

Engineering Network Operations Center

EOD

End Of Day

EODAS

Electro-Optical Distributed Aperture System

EOLA

European Pre-Operational Data Link Applications

EOM

End Of Message

EOP

Operational Evolution Plan

EOT

End Of Text

EOTS

Electro-Optical Targeting System

EP

Engineering Project

EP

External Power

EPC

Engineering Project Contractor

EPCS

Engine Propulsion Control System

E-PIREPS

Electronic Pilot Reports

EPLD

Electronically Programmable Logic Device

EPLERS

Enhanced Position Location And Reporting System

EPR

Engine Pressure Ratio

EPROM

Erasable Programmable Rom

EPS

Electrical Power System

EPV

End-Point Voltage

EQTG

Electronic Qualification Test Guide

ERAST

Environment Research Aircraft And Sensor Technology

ERB

Engineering Review Board

ERD

End Routing Domain

EROPS

Extended Range Operations

ERP

Effective Radiation Power

ERP

Eye Reference Point

ERP

Pdu Echo Replay Protocol Data Unit

ERPDU

Error Protocol Data Unit

ERQ

Pdu Echo Request Protocol Data Unit

ERU

Engine Replay Unit

ES

End System

ES

Extended Squitter

ESA

European Space Agency

ESAS

Electronic Situation Awareness System

ESAS

Enhanced Situational Awareness System

E-Scan

Electronic Scanning

ESD

Electrostatic Discharge

ESDS

Electrostatic Discharge And Soldering

ESDS

Electrostatic Sensitive Devices

ESH

End System Hello

ESHP

Equivalent Shaft Horsepower (Horsepower Including Residual Thrust)

ESID

Engine And System Indication Display

ESIS

Electronic Standby Instrument System

ESIS

Engine And System Indication System

ESM

Electronic Support Measures

ESOIC

Enhanced Small-Outline Ic

ESR

Equivalent-Series Resistance

ESS

Environmental Stress Screening

ESS

Electronic Switching System

ESSD

Electrostatic Sensitive Devices

ESU

Environmental Sensor Unit

ETA

Estimated Time Of Arrival

ETAS

Enhanced Tracon/Tower Automation System

ETB

End Of Block (Ascii/Ia5 Character)

ETB

Engineering Test Bed

ETC

Estimated Time Of Completion

ETD

Estimated Time Of Departure

ETE

Estimated Time Enroute

ETI

Elapsed Time Indicator

ETM

Elapsed Time Measurement

ETM

Electronic Training Manuals

ETMS

Engine-Trend Monitoring Services

ETMS

Enhanced Traffic Management System

ETNO

European Telecommunications Network Operators

ETOPS

Extended Operations

ETOPS

Extended Twin-Engine Operations

ETP

Equal Time Point (Halfway There, By Time)

ETRC

Expected Taxi Ramp Clearances

ETSI

European Telecommunications Standards Institute

ETVS

Enhanced Terminal Voice Switch

ETX

End Of Transmission

EU

Electronic Unit

EU

European Union

EUAFS

Enhanced Upper Air Forecast System

EUPS

External Uninterruptible Power Supply

EURATN

European Atn

EURET

European Research On Transport Systems

EUROCAE

European Organization For Civil Aviation Equipment (European Equivalent Of Rtca)

EV

Earned Value

EVM

Error Vector Magnitude

EVS

Enhanced Vision System

EW

Electronic Warfare

EWEB

Ethernet Webb

EWIS

Electrical Wiring Interconnection System

exocentric

Outside-The-Aircraft

EZAP

Enhanced Zonal Analysis Procedures

F

Fahrenheit

F&E

Facilities And Equipment

F/A

Fighter/Attack

F/O

First Officer

FA

Final Approach

FAA

Federal Aviation Administration

FAA/EURO

FAA/Eurocontrol R&D Committee

FAATC

FAA Technical Center

FAB-T

Family Of Advanced Beyond-Line-Of-Sight Terminals

FAC

Flight Augmentation Computer

FAC

Forward Air Control

FADEC

Full Authority Digital Engine/Electronic Control

FAF

Final Approach Fix

FAI

First Article Inspection

FAMIS

Full Aircraft Management/Inertial System

FANS

Future Air Navigation System (ICAO)

FAR

Federal Acquisition Regulation

FAR

Federal Aviation Regulations

FAR

Federal Acquisition Regulations

FAST

Final Approach Spacing Tool

FAT

Factory Acceptance Test

FB

Fighter-Bomber

FBL

Fly By Light

FBN

Fly By Night

FBO

Fixed-Base Operator

FBW

Fly By Wire

FC

Functional Capability

FC

Foot Candles

FCA

Functional Configuration Audit

FCC

Flight Control Computer

FCC

Federal Communications Commission

FCDC

Flight Critical Direct Current

FCM

Future Concepts For Maintenance

FCMA

Fans Central Monitoring Agency

FCP

Flight Control Processor

FCP

Flight Control Panel

FCS

Flight Control System

FCS

Frame Check Sequence

FCS

Future Concepts For Simulators

FD

Flight Dynamics/Director

FD

Final Data

FDAF

Flight Data Acquisition Function

FDAU

Flight Data Acquisitions Unit

FDB

Flight Plan Data Bank

FDDI

Fiber Distribution Data Interface

FDE

Fault Detection And Exclusion

FDEP

Flight Data Entry Panel

FDH

Flight Deck Handset

FDI

Fault Detection And Isolation

FDIMU

Flight Data Interface Management Unit

FDIO

Flight Data Input/Output

FDM

Flight Data Monitoring

FDM

Frequency Division Multiplex

FDMA

Frequency Division Multiple Access

FDP

Flight Data Processor

FDPS

Flight Data Processing System

FDR

Flight Data Recorder

FDRS

Flight Data Recorder System

FEATS

Future European Air Traffic Management System

FEC

Forward Error Correction

FEP

Front-End Processor

FERNS

Far East Radionavigation Service

FF

Fuel Flow

FFIC

Free Flight Implementation Committee

FFRDC

Federally Funded Research And Development Center

FFS

Full Flight Simulator

FFT

Full Flight Trainer

FGC

Flight Guidance Computer

FGS

Flight Guidance System

FHA

Functional Hazard Assessment

FIAO

Flight Inspection Area Office

FIB

Forwarding Information Base

FIFO

First In, First Out

FIM

Fault Isolation Manual

FIR

Flight Information Region

FIS

Flight Information Services

FIS-B

Fis-Broadcast

FIX

Position In Space Usually On Aircraft'S Flight Plan

FL

Flight Level

FL

Foot Lampert

FLA

Future Large Airlifter (European C-130 Replacement Project)

FLCH

Flight Level Change

FLIR

Forward-Looking Infrared

FLTCK

Flight Check

FltWinds

Flight And Weather Information And Decision Support

FLW

Forward-Looking Windshear Radar

FM

Frequency Modulation

FMA

Flight Mode Annunciator

FMAC

Frequency Management Advisory Council

FMC

Flight Management Control/ Computer

FMC

Future Concepts For Maintenance

FMCDU

Flight Management Control And Display Unit (Fms)

FMCF

Flight Management Computer Function

FMCS

Flight Management Computer System

FMCW

Frequency-Modulated Continuous Wave

FMEA

Failure Mode And Effects Analysis

FMF

Flight Management Function

FMGC

Flight Management Guidance Computer

FMGEC

Flight Management Guidance Envelope Computer

FMP

Flight Mode Panel

FMS

Flight Management System

FMSG

Frequency Management Study Group (ICAO)

FMST

Flight Management System Trainer

FMU

Fuel Metering Unit

FNPRM

Further Notice Of Proposed Rulemaking

FOC

Full Operational Capability

FOC

Fuel/Oil Cooler

FOD

Foreign Object Debris

FOD

Foreign Object Damage

FODA

Flight Operations Data Assurance

FOG

Fiber Optic Gyro

FOQA

Flight Operational Quality Assurance

FOS

Fiber Optics Subcommittee

FOV

Field Of View

FOWG

Fiber Optics Working Group

FPA

Focal Plane Array

FPA

Flight Path Angle

FPAC

Flight Path Acceleration

FPC

Flight Profile Comparator

FPGA

Field Programmable Gate Array

FPM

Feet Per Minute

FPV

Flight Path Vector

FQIS

Fuel Quality Indicating System

FQPU

Fuel Quality Processor Unit

FQR

Formal Qualification Review

FR

Frame Relay

FRA

Flap Retraction Altitude

FRAD

Frame Relay Access Device

FRCS

Flight Recorder Configuration Standard

FRED

Flight Recorder Electronic Documentation

FRM

Fault Reporting Manual

FRM

Flammability Reduction Means

FRM

Frame Reject Mode

FRMR

Frame Reject

FRP

Federal Radionavigation Plan

FRPA

Fixed Reception Pattern Antenna

FRQ

Frequency

FSAS

Flight Service Automation System

FSC

Future Combat Systems (Us Army)

FSE

Fans Systems Engineering

FSE

Field Service Engineer

FSEMC

Flight Simulator Engineering And Maintenance Conference

FSEU

Flap Slat Electronics Unit

FSF

Flight Safety Foundation

FSM

Flight Schedule Monitoring

FSS

Flight Service Station

FSW

Forward-Swept Wings

FSWE

Fans Software Engineering

FT

Functional Test

FT/ADIRS

Fault Tolerant/Air Date Inertial Reference System

FTE

Flight Technical Error

FTP

File Transfer Protocol

FTPP

Fault Tolerant Power Panel

FTS

Federal Telecommunications System

FVHF

Future VHF System Study (Eurocontrol)

FW

Failure Warning

FW

Firewall Router

FWC

Flight Warning Computer

FWD

Forward

FWS

Flight Warning System

FY

Fiscal Year

g

Gamma-Flight Path Angle

G

Gamma-Wing Dihedral Angle

G&A

General And Administrative (Overhead Expenses)

G&C

Guidance & Control

G/A

Ground/Air Or Ground-To-Air

G/G

Ground/Ground

G/S

Glide Slope

GA

Go-Around

GA

General Aviation

GA

Genetic Algorithm (Optimization Method)

GAAS

Gallium Arsenide

GACS

Genetic Atn Communications Service

GAGAN

Geostationary Augmentation Network

GAIN

Galley Inserts

GAIT

Ground-Based Augmentation And Integrity Technique

GAMA

General Aviation Manufacturers Association

GAN

Global Area Network

GAO

General Accounting Office

GATM

Global Air Traffic Management

GAViS

General Aviation Vision System

GBAS

Ground-Based Augmentation System

GBST

Ground Based Software Tool

GBT

Ground-Based Transceiver

Gbyte

Gigabyte (Billion Bytes)

GCA

Ground Controlled Approach

GCAS

Ground Collision Avoidance System

GCB

Generator Circuit Breaker

GCC

Ground Cluster Controller (ACARS)

GCI

Ground Controlled Interception

GCP

Glare-Shield Control Panel

GCS

Ground Clutter Suppression

GCU

Generator Control Unit

GDAP

Growing Danger Of Acronym Proliferation

GDLP

Ground Data Link Processor

GDOP

Geometric Dilution Of Precision

GDP

Ground Delay Program

GE

Geopolitical Entity

GENOT

General Notice

GEO

Geosynchronous/Geostationary Earth Orbit

GEP

Ground Entry Point

GES

Ground Earth Station

GFE

Government Furnished Equipment

GFI

General Format Identifier

GFLOPS

Gigaflops

GFSK

Gaussian Frequency Shift Keying

GG

Graphics Generator

GGR

G/G Router

GGS

GPS Ground Station

GGTFM

Ground-Ground Traffic Flow Management

GH

Ground Handling

GHz

Gigahertz

GI

Group Identifier

GIB

Gnss Integrity Broadcast

GIC

Gnss Integrity Channel

GIC

GPS Integrity Channel

GICB

Ground-Initiated Comm-B

GIHO

Ground Initiated Handoff

GINS

GPS-Inertial Navigation Systems

GIOVE-A

Galileo In-Orbit Validation Experiment-A

GIP

Government-Industry Partnership

GIS

Geodetic Information System

GIS

Graphical Information System

GIVE

Grid Inospheric Vertical Error

GJU

Galileo Joint Undertaking

GL

Ground Location (ACARS/Afeps)

GL

Group Length

GLC

Geographic Locator Codes

GLNS

GPS Landing And Navigation System

GLONASS

Global Navigation Satellite System (Russia)

GLOW

Gross Liftoff Weight (Wo For Rockets)

GLS

Gnss Landing System

GLS

GPS Landing System

GLU

GPS Landing Unit

GM

Guidance Material

GMC

Ground Movement Control

GMDS

Ground Mobile Data Service

GMPCS

Global Mobile Personnel Communication Services

GMR

Giant Magnetoresistive

GMT

Greenwich Mean Time

GMTI

Ground Moving Target Indicator

GMU

GPS Monitoring Unit

GNA

Global Network Architecture

GNE

Gross Navigational Error

GNR

Global Navigation Receiver

GNSS

Global Navigation Satellite System

GNSSP

Gnss Panel (ICAO)

GoMATS

Golf Of Mexico Advanced Traffic Surveillance

GOPS

Giga Operations

GOS

Grade Of Service

GOSIP

Government Open Systems Interconnection Profile

GP

General Purpose

GP&C

Global Positioning And Communications

GPADIRS

Global Positioning, Air Data, Inertial Reference System

GPCBT

Guidelines For The Production Of Computer-Based Training (Eurocontrol)

GPIB

General Purpose Instrument Bus

GPIRS

Global Positioning/Inertial Reference System

GPP

General Purpose Processor

GPPUs

General-Purpose Processing Units

GPRS

General Packet Radio Services

GPS

Global Positioning System

GPSSU

GPS Sensor Unit

GPU

Ground Power Unit

GPWC

Ground Proximity Warning Computer

GPWS

Ground Proximity Warning System

GR

Ground Router

GRAS

Ground-Based Regional Augmentation System

GRIP

Gridded Binary (National Weather Service Model Output)

GRP

Geographic Reference Point

GS

Ground Speed/Station

GSC

Ground Station Controller (ACARS)

GSE

Ground Support Equipment

GSIF

Ground Station Information Frame

GSM

Global Systems Mobile

GSM

Global System for Mobile Communications

GSMS

Ground Station Management System

GSP

Glare Shield Panel

GTC

Data Link Ground Terminal Computer

GUI

Graphical User Interface

GVE

Graphics Vector Engine

GW

Gateway

GWDS

Graphic Weather Display System

GWS

Graphical Weather Services

h

Eta-Efficiency

HAA

Height Above Airport

HAA

High-Altitude Airship

HAD

Hardware Architecture Document

HADS

High-Altitude Platform Station

HALE

High Altitude Long Endurance

HARM

High-Speed Anti-Radiation Missile

HARS

High Altitude Route System

HCI

Human-Computer Interface

HCP

Heads-Up Control Panel

HCS

Host Computer System

HDD

Head-Down Displays

HDG

Heading

HDG

Sel Heading Select

HDISK

Hard Disk

HDL

Hybrid Data Link

HDLC

High-Level Data Link Control

HDLC-B

Hdlc-Balanced

HDLMS

Hybrid Data Link Management System

HDOP

Horizontal Dilution Of Precision

HDP

Hardware Development Plan

HDTV

High-Definition Television

HE

Altitude Error

HE

High Explosive

He

Helium

HEA

Head Equipment Assembly

Helo

Helicopter

HERF

High-Energy Radio Frequency (Or Energy Radiated Fields: Dense)

HF

High Frequency

HF

Human Factors

HFACS

Human Factors Analysis And Classification System

HFDL

High Frequency Data Link

HFDM

High-Frequency Data Modem

HFDR

High Frequency Data Radio

HFI

Human Factors Integration

HFNPDU

High Frequency Network Protocol Data Unit

HFS

High Frequency System

HFSG

Human Factor Study Group

HFSNL

High Frequency Subnetwork Layer

HFWG

Human Factors Working Group

HGA

High Gain Antenna

HGAS

Hga System

HGC

Head-Up Guidance Computer

HGI

Hot Gas Ingestion

HGS

Head-Up Guidance System

HGS

Hfdl Ground Station

HHLD

Heading Hold

HID

Host Interface Display

HIL

Horizontal Integrity Limit

HIRF

High Intensity Radiated Field

HLCS

High Lift Control System

HLE

Higher Layer Entity

HLL

High Level Language

HLR

Home Location Register

HMD

Helmet-Mounted Display

HMI

Hazardously Misleading Information

HMI

Human-Machine Interface

HMOS

High Density Metal Oxide Semiconductor

HMU

Height Monitoring Unit

HO

Handoff

HOCSR

Host/Oceanic Computer System Replacement

HOTAS

Hands On Throttle And Stick

HOW

Hand-Over Word

HP

High Pressure

HP

Holding Pattern

hPa

Hecto Pascal

HPA

High Power Amplifier

HPC

High Pressure Compressor

HPR

High Power Relay

HPSOV

High Pressure Shutoff Valve

HPT

High Pressure Turbine

HRD

Home Routing Domain

HRM

Home Regional Manager

HSD

High-Speed Data

HS-DSAD

High Speed Frame Relay Service Access Device

HSI

Horizontal Situation Indicator

HSIT

Hardware And Software Integration Test

HSL

Heading Select

HSR

High Stability Reference

HSRP

Hot Standby Routing Protocol

HST-900

High Speed Transceiver

HTC

Highest Two-Way Channel

HUD

Head-Up Display

HUMS

Health And Usage Monitoring System

HVPS

High Voltage Power Supply

HWCI

Hardware Configuration Item

HX

Heat Exchanger

HYD

Hydraulic

HYDIM

Hyd Interface Module

Hz

Hertz (Cycles Per Second)

I&TE

Integration And Test Engineering

I/O

Input/Output

IA

Interoperability Assessment

IAC

Integrated Avionics Computer

IACSP

International Aeronautical Communications Service Provider

IAGS

Integrated ARINC Ground Station

IANA

Internet Assigned Number Authority

IAOA

Indicated Angle Of Attack

IAOPA

International Council Of Aircraft Owners And Pilots Association

IAPA

Instrument Approach Procedures Automation

IAPS

Integrated Avionics Processing System

IARP

Inverse Address Resolution Protocol

IAS

Indicated Airspeed

IAS

Integrated Avionics Services (Full Service Avionics Product Development Consultant)

IAT

Investment Analysis Team

IATA

International Air Transport Association

IATA

International Air Transport Association

IBAC

International Business Aviation Council

IC

Integrated Circuit

IC

Intercabinet

ICAO

International Civil Aviation Organization

ICAP

Increased Capability

ICAP

Improved Capability

ICARD

ICAO Five-Letter Name Code & Route Designator System

ICC

Iaps Card Cage

ICCAIA

International Coordinating Council Of Aerospace Industries Association

ICD

Interface Control Document/Drawing

ICD

Interactive Design Center

ICD

Installation Control Drawing

ICM

Interline Communications Manual

ICMP

Internet Control Message Protocol

ICNIA

Integrated Communications, Navigation And Identification Avionics

ICP

Integrated Core Processor

ICS

Intercommunications System

ICS

Interface Control Specification

ICSS

Integrated Communication Switching System

ICU

Integrated Control Unit

ICU

Instrument Comparator Unit

ID

Identifier/Identification

IDA

Institute For Defense Analysis (Think-Tank For Dod)

IDC

Internal Diagnostic Capabilities

IDC

Indicator Display/Control

IDD

Interface Design Document

IDEN

Integrated Digital Enhanced Network

IDEO

Innovation, Design Engineering Organization

IDG

Integrated Drive Generator

IDI

Initial Domain Identifier

IDIQ

Indefinite-Delivery/Indefinite Quantity

iDMU

Integrated Data Management Unit

IDP

Initial Domain Part

IDRP

Interdomain Routing Protocol

IDS

Integrated Display System

IDS

Inter-Domain System

IDS

Ice Detection System

IDU

Interactive Display Unit

IEC

International Electrotechnical Commission

IEC

Iaps Environmental Control Module

IEC

International Engineering Consortium

IED

Insertion Extraction Device

IEEE

Institute Of Electrical And Electronics Engineers

IF

Intermediate Frequency

IFALPA

International Federation Of Airline Pilots Association

IFASS

Integrated System For Surveillance And Radio Transmission

IFATCA

International Federation Of Air Traffic Controllers' Association

IFC

Indicated Final Cost

IFDL

Intraflight Data Link

IFE

In-Flight Entertainment

IFF

Identification Friend-Or-Foe

IFIS

Integrated Flight Information System

IFPS

Integrated Initial Flight Plan Processing System

IFR

Instrument Flight Rules

IFR

In-Flight Refueling

IFRB

International Frequency Registration Board

IGES

Intermediate Ground Earth Station

IGES

Standardized Graphics Exchange File

IGIA

Interagency Group On International Aviation

IGV

Inlet Guide Vane

IHAS

Integrated Hazard Avoidance System

ILA

International Law Association

ILM

Independent Landing Monitor

ILS

Instrument Landing System

ILSP

Integrated Logistics Support Plan

IMA

Integrated Modular Avionics

IMC

Instrument Meteorological Conditions

IMG

Implementation Manager Group

IMU

Inertial Measurement Unit

IN.HG.

Inches Of Mercury

INAV

Interactive Navigation

INCD

Integrated Navigation, Controls And Displays System

INFO

Information Frame

INMARSAT

International Maritime Satellite Organization

INMS

Integrated Network Management System

INS

Inertial Navigation System

INTELSAT

International Telecommunications Satellite Organization

InterNIC

Internet Network Information Center

Interop

Interoperability

IOC

Initial Operating Capability

ION

Institute Of Navigation

IOR

Indian Ocean Region

IOS

Internet Operating System

IOT

& E Initial Operational Test And Evaluation

IP

Internet Protocol

IPACG

Informal Pacific Atc Coordination Group

IPC

Interprocess Communication

IPC

Intermediate Pressure Compressor

IPD

Industrial Products Division

IPI

Initial Protocol Identifier

IPL

Illustrated Parts List

IPPD

Integrated Product And Process Development

IPR

Internet Protocol Router

IPS

Internet Service Providers

IPT

Integrated Project Team

IPT

Intermediate Pressure Turbine

IPT

Integrated Product Team

IR

Infrared

IR&D

Investment Research And Development

IRAC

Interdepartmental Radio Advisory Committee

IRIG-B

Inter-Range Instrumentation Group-Time Code Format B

IRIS

Iris Recognition Immigration System

IRP

Integrated Refuel Panel

IRR

Internal Rate Of Return

IRS

Inertial Reference System

IRS

Interface Requirements Specification

IRST

Infrared Search And Track

IRU

Inertial Reference Unit

IS

Intermediate System

ISA

Industry Standard Architecture

ISA

Instrument Society Of America

ISC

Integrated Systems Controller

ISDN

Integrated Services Digital Network

ISDOS

Information System Design And Optimization System

ISDU

Inertial System Display Unit

ISH

Intermediate System Hello

ISIS

Integrated Sensor Is Structure

ISLN

Isolation

ISMS

In-Flight Safety Monitoring System

ISO

Pa Iso Protocol Architecture

ISO

International Standards Organization

ISP

Integrated Switching Panel

ISP

Internet Service Providers

Isp

Specific Impulse (Rocket Propellant Consumption =3600/Sfc)

ISR

Interrupt Service Routine

ISR

Intelligence-Surveillance-Reconnaissance (Missions & Equipment)

ISS

Integrated Surveillance System

ISSN

Intermediate System Sub-Network

ISSS

Initial Sector Suite System/Subsystem

ISU

Initial Signal Unit

ISU

Individual Subscriber Unit

IT

Information Technology

ITAR

International Traffic In Arms Regulations

ITC

In-Trail Climb

ITD

In-Trail Descent

ITM

It Management

ITS

Integrated Test System

ITSE

Integrated Test And Support Environment

ITU

International Telecommunications Union

ITU-R

International Telecommunication Union –Radio Communication Bureau

ITWS

Integrated Terminal Weather System

IUPS

Internal Uninterruptible Power Supply

IV

Isolation Valve

IVSI

Instantaneous Vertical Speed Indicator

J/S

Jammer-To-Signal Ratio

JAA

Joint Aviation Authority

JAR

Joint Airworthiness Requirement

JAR

Joint Aviation Requirements (European Flight & Certification Specs)

JAR-AWO

Jar-All Weather Operations

JAR-OPS

Joint Airworthiness Requirement

JASSM

Joint Air-To-Surface Standoff Missile

JAST

Joint Advanced Strike Technology

JATO

Jet-Assisted Take-Off

JCAB

Japanese Civil Aviation Bureau

JDAM

Joint Direct Attack Munition

JFET

Junction Field Effect Transistor

JFS

Joint Strike Fighter

JHMCS

Joint Helmet-Mounted Cueing Systems

JP

Jet Propellant (Kerosene-Based Fuel)

JPDO

Joint Planning Development Office

JPO

Joint Planning Office

JPS

Journal Processing System

JRANS

Japanese Regional Air Navigation System

JRC

Joint Resource Council

JSAT

Joint System Acceptance Test

JSF

Joint Strike Fighter (Project Leading To F-35)

JSTARS

Joint Surveillance Target Attack Radar System

JTAG

Joint Test Action Group

JTIDS

Joint Tactical Information Distribution System

JTRS

Joint Tactical Radio System

J-UCAS

Joint Unmanned Combat Air Systems

JV

Joint Venture

kA

Kiloamperes

KARI

The Korea Aerospace Research Institute

KB

Kilobytes (Thousand Bytes)

KBITS

Kilobits

Kbps

Kilobits Per Second

Kgls

Kinematic GPS Landing System

KHz

Kilohertz (1000 Cycles Per Second)

KISS

Keep It Simple, Stupid

KPS

Kb Per Second

ksps

kilo symbols per second

KTS

Knots

KVA

Kilovolt-Ampere

KW

Kilowatt

l (lambda)

Wing Taper Ratio

L/D

Lift To Drag Ratio

L1

L-Band Carrier (1575.42 Mhz)

L2

L-Band Carrier (1227.6 Mhz)

LAAS

Local Area Augmentation System

LAC

Location Area Code

LACAC

Latin American Civil Aviation Commission

LADAR

Laser Radar

LADGPS

Local Area Differential GPS

LAGPS

Local Area Global Positioning System

LAHSO

Land And Hold Short Operation

LAIRCM

Large Aircraft Infrared Countermeasure

LAN

Local Area Network

LANTIRN

Low-Altitude Navigation And Targeting Infrared For Night

LAPB

Link Access Protocol, Balanced

LASER

Light Amplification By Simulated Emission Of Radiation

LAT

Latitude

LBA

Luftfahrt-Bundesamt (Germany)

LBP

L-Band Physical

LCA

Layered Component Architecture

LCC

Leadless Chip Carrier

LCC

Life Cycle Cost

LCC

Low-Cost Carrier

LCD

Liquid Crystal Display

LCF

Link Control Field

LCI

Logical Channel Identifier

LCN

Local Communications Network

LCP

Lighting Control Panel

LCR

Link Connection Refusal

LDA

Landing Directional Aid

LDA

Laterally Displaced Approach

LDCC

Leaded Chip Carrier

LDCS

Local Departure Control System

LDGPS

Local Area Differential Global Positioning Satellite

LDOC

Long Distance Operational Control

LDRCL

Low Density Radio-Communications Link

LDU

Lamp Driver Unit

LE

Link Establish

LED

Light-Emitting Diode

LEO

Low Earth Orbiting

LEO

Low Earth Orbit

LF

Low Frequency

LFE

Lead-Free Electronics

LFR

Lf Radio Range

LGA

Low Gain Antenna

LGB

Laser-Guided Bomb

LHP

Lighting Hirf Protection

LHT

Lufthansa Technik Ag

LIDAR

Light Detection And Ranging

LIMNATRAN

Limited North Atlantic Regional Air Navigation

LINCS

Long-Haul/Leased Interfacility National Airspace Communications System

LISN

Line Impedance Stabilization Network

LL

L-Band Link

LLC

Logical Link Control

LLLTV

Low-Light-Level Television

LLWAS

Low-Level Wind Shear Alert System

LME

Link Management Entity

LMI

Logical Management Interface

LMM

Locator Middle Marker

LMT

Local Mean Time

LNA

Low-Noise Amplifier

LNAV

Lateral Navigation

LOB

Left Outboard

LOC

Localizer/Location

LOM

Locator Outer Marker

LON

Longitude

LORAN

Long-Range Air Navigation

LOS

Line Of Sight

LOX

Liquid Oxygen

LPB

Loss Prevention Bulletin

LPC

Low Pressure Compressor

LPDU

Link Protocol Data Unit

LPT

Low Pressure Turbine

LRC

Long-Range Cruise

LRM

Line Replaceable Module

LRR

Long-Range Radar

LRU

Line Replaceable Unit

LSAS

Longitudinal Stability Augmentation System

LSB

Least Significant Bit

LSB

Lower Sideband

LSD

Least Significant Digit

LS-DSAD

Low Speed Frame Relay Service Access Device

LS-FRAD

Low Speed Frame Relay Access Device

LSI

Large Scale Integration

LSK

Line Select Key

LSN

Local Subnetwork

LSP

Link State Pdu

LSS

Lightening Sensor System

LTA

Lighter Than Air

LTC

Lowest Two-Way Channel

LV

Lower Sideband Voice

LVC

Low Visibility Conditions

LVDT

Linear Voltage Differential Transducer

LVL

Level

LVP

Low Visibility Procedures

LVPS

Low Voltage Power Supply

LVTs

Low Volume Terminals

LWF

Lightweight Fighter

M

Mach Number

m

Mu-Viscosity; Micro (One Millionth = 1/10^6 )

M&S

Merging & Spacing

M/ASI

Mach/Airspeed Indicator

M2K

Mobility 2000

MA

Message Assurance

MAA

Maximum Authorized Ifr Altitude

MAC

Medium Access Controller

MACC

Military Area Control Center

MACS

Multiple Access Communication System

MAD

Magnetic Anomaly Detection (Finds Submarines)

MAD

Mutually Assured Destruction

MADARS

Malfunction Detection, Analysis And Recording System

MAHWP

Missed Approach Holding Waypoint

MALDT

Mean Administrative And Logistics Delay Time

MALE

Medium-Altitude, Long-Endurance

MAN

Metropolitan Area Network

MANPADS

Man Portable Air Defense System

MAP

Missed Approach

MAP

Missed Alert Parameter

MAP

Missed Approach Procedure

MAP

Monitor Alert Parameter

MAP

Mobile Application Part

MAPt

Missed Approach Point

MAR

Mobile Access Router

MARSA

Military Assumes Responsibility For Separation

MASPS

Minimum Aviation System Performance Standards

MAST

Multiaircraft Simulation Terminal

MAT

Maintenance Access Terminal

MAV

Micro Air Vehicle

MAWP

Missed Approached Waypoint

MAX

Maximum

mb

Millibars

MB

Marker Beacon

MBE

Multiple Bit Error

MBER

Minimum Bit Error Rate

MBPS

Megabytes Per Second

MC

Master Change

MCA

Minimum Crossing Altitude

MCB

Microwave Circuit Board

MCC

Maintenance Control Computer

MCDP

Maintenance Control Display Panel

MCDU

Multifunctional Control Display Unit

MCI

Mode C Intruder

MCN

Manufacturing Control Number

MCOS

Multi-Computing Operating System

MCP

Maintenance Control Panel

MCP

Mode Control Panel

Mcr

Critical Mach Number

MCT

Max Continuous Thrust

MCU

Modular Concept Unit

MCU

Multifunction Concept Unit

MDA

Minimum Descent Altitude

MDA

Missile Defense Agency

MDAH

Minimum Descent Altitude/Height

MDAO

Multidisciplinary Design, Analysis, & Optimization

MDAU

Maintenance Data Acquisition Unit

MDC

Maintenance Diagnostic Computer

MDCRS

Meteorological Data Collection And Reporting Service

MDD

Mission Data Debrief

Mdd

Drag Divergent Mach Number

MDL

Multipurpose Data Link

MDO

Multidisciplinary Optimization Or Multidisciplinary Design Optimization

MDR

Mode Digital Radio

MDS

Minimum Discernible Signal

MDT

Maintenance Display Terminal

MDT

Mean Downtime

MEA

Minimum En Route Altitude

MEC

Main Equipment Center

MECO

Main Engine Cut Off (Shutdown)

MEL

Minimum Equipment List

MEO

Medium Earth Orbit

MEOT

Multiple-Expert Opinion Team

MES

Main Engine Start

MET

Meteorology

METAR

Meteorological Aviation Routine Weather Report

MF

Medium Frequency

MFCP

Multifunction Control Display Panel

MFD

Multifunction Display

MFDS

Malfunction Display System

MFDU

Malfunction Display Unit

MFDUA

Miscellaneous Flight Data Acquisition Units

MFIT

Mean Fault Isolation Time

MFM

Maintenance Fault Memory

MGR

Manager

MGSCU

Main Gear Steering Control Unit

MHD

Magnetic Hard Drive

MHD

Multi-Hazard Display

MHRS

Magnetic Heading Reference System

MHS

Message Handling Service

MHz

Megahertz

MIB

Management Information Base

MIC

Microphone

MicroEARTS

Micro En Route Automated Radar Tracking System

MIDS

Multifunction Information Distribution System

MIDU

Multi-Purpose Interactive Display Unit

MILAERO

Military/Aeronautical

MILS

Multiple Independent Levels Of Security

MILSPEC

Military Specification

MIL-STD

Military Standard

MIMO

Multi-Input/Multi-Output

MIN

Minimum/Minute

MIPS

Management Interface Protocol Specification

MIPS

Million Instructions Per Second

MKR

Marker

MLA

Maneuver Limited Altitude

MLM

Mid-Level Management

MLS

Microwave Landing System

MLW

Maximum Landing Weight

MM

Mass Memory

MM

Middle Marker (Glideslope)

MM

Mobility Management

MMI

Man-Machine Interface

MMIC

Monolithic Microwave Integrated Circuit

MMR

Multimode Receiver

MMS

Maintenance Management System

MMSI

Miniature Munitions System Interface

MMU

Memory Management Unit

MMW

Millimeter Wave

MNCID

Management Network Category Interaction Diagram

MNPS

Minimum Navigation Performance Specification

MNS

Managed Network Service

MO

Managed Object

MO

Magneto-Optical

MOA

Memorandum Of Agreement

MOA

Military Operation Area

MOCA

Minimum Obstacle Clearance Altitude

MOD

Modification

MOD

Magneto-Optical Drive

MODEM

Modulator/Demodulator

MOPR

Minimum Operational Performance Requirements

MOPS

Minimum Operational Performance Standards

MOQA

Maintenance Operations Quality Assurance

MORA

Minimum Off-Route Altitude

MOS

Metal Oxide Semiconductor

MOSA

Modular Open Systems Approach

MOU

Memorandum Of Understanding

MOU

Memorandum of Understanding

MOV

Metal Oxide Varsitor

MPAR

Multipurpose Airport Radar

MPCU

Multiport Protocol Converter Unit

MPDS

Mobile Packet Data Service

MPEG-3

Moving Picture Expert Group

MPEL

Maximum Permissible Exposure Level

MPM

Microwave Power Module

MPP

Materials, Processes And Parts

MPS

Maintenance Processor System/ Subsystem

MRA

Minimum Reception Altitude

MRF

Multirole Fighter (Jsf/F-35 Predecessor Program)

MRR

Manufacturing Revision Request

MRT

Mean Repair Time

MRT

Multi-Remote Terminal

Ms

Millisecond

MS

Milestone

MSB

Most Significant Bit

MSC

Member Services Center

MSC

Message Sequence Chart

MSC

Mobile Switching Center

MSC-MS

Mobile Switching Center to Mobile Subscriber

MSCP

Mobile Satellite Service Provider

MSD

Mass Storage Device

MSG

Message

MSI

Medium Scale Integration

MSISDN

Mobile Station Individual Subscriber Director y Number

MSK

Minimum Shift Keying

MSL

Mean Sea Level

M-SNDCF

Mobile-Subnetwork Dependent Convergence Function

MSP

Mode S Specific Protocol

MSS

Mobile Satellite Service

MSSR

Monopulse Secondary Surveillance Radar

MSSS

Mode S Specific Services

MSU

Mode Select Unit

MT

Minimum Time

MTA

Message Transfer Agent

MTBF

Mean Time Between Failure

MTBO

Mean Time Between Outages

MTBR

Mean Time Between Removal/Repairs

MTBUR

Mean Time Between Unscheduled Removal

MTBUR

Mean Time Between Unit Replacements

MTC

Maintenance Terminal Cabinet

MTD

Maintenance Terminal Display

MTD

Message Termination Devices

MTF

Maintenance Terminal Function

MTI

Moving Target Indicator

MTI

Moving Target Indicator

MTM

Module Test And Maintenance

MTMBIU

Mtm Bus Interface Unit

MTOW

Maximum Takeoff Weight

MTR

Military Training Route

MTSAT

Multifunction Transport Satellite

MTTDA

Mean Time To Dispatch Alert

MTTF

Mean Time To Failure

MTTM

Mean Time To Maintenance

MTTMA

Mean Time To Maintenance Alert

MTTR

Mean Time To Repair

MTTR

Mean Time To Repair

MTTRS

Mean Time To Restore Service

MTTUR

Mean Time To Unscheduled Removal

MU

Management Unit

MUE

Modernized User Equipment

MUS

Minimum Use Specification

MUSE

Multi-User System Environment

MUX

Multiplexer

mV

Millivolts

MWARA

Major World Air Route Area

MWP

Meteorological Weather Processor

MWS

Missile Warning System

MXU

Multiplexed Unit

MZFW

Maximum Zero Fuel Weight

n

Load Factor

N/A

Not Applicable

N1

Fan Speed

N2

Intermediate Compressor Speed

N3

High-Speed Compressor

NACA

National Advisory Committee For Aeronautics

NADIN

National Airspace Data Interchange Network

NADIN

Ii Nadin Packet Switch

NAILS

National Airspace Integrated Logistics Support

NAK

Negative Acknowledgment

NAPRS

National Airspace Performance Reporting System

NAS

National Airspace System (FAA)

NAS

National Aircraft Standard

NAS

Naval Air Station

NASA

National Aeronautics And Space Administration

NASDAC

National Aviation Safety Data Analysis Center

NASPALS

National Airspace System Precision Approach And Landing System

NASTRAN

Nasa Structural Analysis

NAT

North Atlantic Region

NAT

North Atlantic Tracks

NAT

Tfg Nat Traffic Forecasting Group

NAT/NAM/PAC

North Atlantic/North American/Pacific

NATA

National Air Transport Association Inc.

NATCA

National Air Traffic Controllers Association

NATS

National Air Traffic Services (Uk)

NATS

North Atlantic Track System

NAV

Navigation

NAVAID

Navigational Aid

NavAir

Naval Air Systems Command

NAVSAT

Navigation Satellite

NavSea

Naval Sea Systems Command

NBAA

National Business Aviation Association

NC

Numerically Controlled

NCAR

National Center For Atmospheric Research

NCATT

National Center For Aircraft Technician Training

NCD

No Computed Data

NCI

Not Currently Implemented

NCOW

Net-Centric Operations And Warfare

NCP

Nas Change Proposal

NCS

Network Control System

NCS

Network Coordination Station

ND

Navigation Display

NDB

Navigation Data Base

NDB

Non-Directional Radio Beacon

NDI

Nondestructive Inspection

NDI

Non-Developmental Item

NE

Network Element

NEAN

North European Ads Network

NEAP

North European Cns/Atm Application Project

NELS

Northwest European Loran System

NEMA

National Electrical Manufacturers Association

NESACC

North, East & Southern Area Control Centers For China

NESDIS

National Environmental Satellite Data And Information Service

NET

Network Entity Title

NEXCOM

Next Generation Air/Ground Communications System

NEXRAD

Next-Generation Weather Radar

NFF

No Fault Found

NFS

Network File Server

NGATS

Next Generation Air Transportation System

NIAC

Nas Information Architecture Committee (FAA)

NIC

New Installation Concepts

NICE

Nat Implementation Management Group Cost Effectiveness

NICE

Network Integrated Cabin Equipment

NICs

Network Interface Controllers

NIH

Not Invented Here

NIMA

National Imagery And Mapping Agency

NIMS

Nas Infrastructure Management System

NIP

Network Interface Processor

NIR

Network Interface Router

NIRV

Network Interface Router VDL

NIS

Not In Service

NISC

Nas Information Security Coordination

NIST

National Institute Of Standards And Technology

NITA

New Information Technologies In Aviation

NIU

North American Isdn User Forum (Nist)

NL

Network Layer

NLM

Network Loadable Module

NLP

Network Layer Protocol

NLR

Netherlands National Aerospace Laboratory

NM

Network Management

NM

Nautical Mile

NMC

National Meteorological Center

NMCCD

Network Management Category Class Diagram

NMCD

Network Management Category Diagram

NMF

Network Management Function

NMIRS

Network Management Interface Requirements Specification

NMP

Network Management Plan

NMS

Network Management System

NMS

Navigation Management System

NMSP

New Mexico State Police

NO

Com No Communication

NOAA

National Oceanic And Atmospheric Administration

NOC

Network Operations Center

NOC

Note Of Change

NOCAR

North Atlantic Oceanic Concept And Requirements

NOCC

National Operational Control Center

NOI

Notice Of Inquiry (Fcc)

NOPAC

North Pacific

NORAD

North American Aerospace Defense Command

NOTAM

Notice To Airmen

NOTAR

No Tail Rotor

NOTUS

Notice To Users (ARINC)

NPA

Non-Precision Approach

NPDU

Network Protocol Data Unit

NPIAS

National Plan For Integrated Airport Systems

NPR

National Performance Review

NPRM

Notice Of Proposed Rule Making

NPV

Net Present Value

NR

Network Router

NRD

Network Routing Domain

NRP

National Route Program

NRZ

Non-Return To Zero

NS

Network Service

NSA

National Security Agency

NSAP

Network Service Access Point

NSC

Network Service Center

NSDU

Network Service Data Unit

NSEL

Nsap Selection

NSEU

Neutron Single Event Upset

NSSL

National Severe Storms Laboratory

NTF

No Trouble Found

NTIA

National Telecommunications And Information Administration (U.S.)

NTSB

National Transportation Safety Board

NTSM

National Transportation Safety Board (U.S.)

NTST

National Television Systems Committee

NUI

Network User Identification

NUP

Nean Update Program

NURBS

Non-Uniform Rational B-Spline (Curve Equation For Cad)

NVCD

Night Vision Cueing And Display

NVIS

Night Vision Imaging Spectrometer

NVM

Non-Volatile Memory

NVRAM

Non-Volatile Ram

NWS

National Weather Service (U.S.)

O&M

Operations And Maintenance

O&S

Operations And Support

OAC

Oceanic Area Control Center

OAS

Oceanic Automation System

OASIS

Operational Area Satellite Information System

OASIS

Operational And Supportability Implementation System

OASIS

Organic Airborne And Surface Influence Sweep

OASYS

Obstacle Avoidance System

OAT

Operational Acceptance Test

OAT

Outside Air Temperature

OATS

Orbit And Attitude Tracking System

OBP

Operational Build Plan

OBS

Omnibearing Selector

OBS

Optical Bypass Switch

OCA

Oceanic Control Area

OCC

Occasionally Connected Computing

OCC

Operations Control Center

OCD

Oceanic Clearance Delivery

OCIG

Oceanic Communications Improvement Group

OCP

Oceanic Clearance Processor

OCTAS

Obstacle Cable And Terrain Avoidance System

ODA

Open Document Architecture

ODAPS

Oceanic Display And Planning System

ODIAC

Operational Requirements For Atm Air/Ground Data Communications (Eurocontrol)

ODID

Operational Display And Input Development

ODL

Optical Data Link

ODL

Oceanic Data Link

OEI

One Engine Inoperative

OEM

Original Equipment Manufacturer

OEP

Operational Evolution Plan

OES

Office Of Emergency Services

OEU

Overhead Electronics Unit

OFDM

Orthogonal Frequency Division Multiplexing

OFDPS

Oceanic Flight Data Processing System

OFP

Operational Flight Program

OGE

Operational Ground Equipment

OHA

Operational Hazard Assessment

OHU

Overhead Unit (Hud)

OID

Object Identifier

OIG

Office Of Inspector General

OIT

Onboard Information Terminal

OJT

On-The-Job Training

OLAN

Onboard Local Area Network

OLDI

On-Line Data Interchange

OM

Outer Marker

OMB

Office Of Management And Budget

OMS

Onboard Maintenance System

OMT

Object Modeling Technique

OMTs

Onboard Maintenance Terminals

ONR

Office Of Naval Research (U.S.)

OOA

Object-Oriented Analysis

OOD

Object-Oriented Design

OODA

Observe, Orient, Decide And Act

OOOI

Out/Off/On/In

OPA

Operational Performance Assessment

OPAS

Overhead Panel ARINC 629 System

OPBC

Overhead Panel Bus Controller

OPS

Operations

OPS

Ops Per Second

OPSPECS

Ops Specifications

OPU

Overspeed Protection Unit

O-QAR

Optical Quick Access Recorder

OR

Operational Requirements

ORB

Object Request Broker

ORD

Operations Readiness Demonstration

ORD

Operational Requirements Document

OS

Operating System

OS

Open Service

OSA

Operational Safety Assessment

OSCAR

Orbiting Satellite Carrying Amateur Radio

OSDS

Oceanic Systems Development Support

OSE

Open Systems Environment

OSED

Operational Service And Environment Definition

OSEIC

Operational Service And Environment Information Capture

OSI

Open Systems Interface/ Interconnection

OSIE

Osi Environment

OSI-RM

Osi Reference Model

OSJTF

Open Systems Joint Task Force

OSPF

Open Shortest Path First

OSR

Order Status Report

OT&E

Operational Test And Evaluation

OTA

Office Of Technology Assessment (U.S.)

OTFP

Operational Traffic Flow Planning

OTH

Over The Horizon

OTP

Office Of Telecommunications Policy (U.S.)

OTS

Off The Shelf

OVHT

Overheat

p

Pi- 3.141592653589793...

P

Pi-Product Operator

P&L

Profit And Loss

P/F

Poll/Final

P/RST

Press To Reset

P2FEP

Petal-Ii Front-End Processor

P3

I Preplanned Product Improvements

PA

Passenger Address

PA

Power Amplifier

PABX

Private Automatic Branch Exchange

PAC

Path Attenuation Compensation

PACIS

Passenger Address And Communication Interphone System

PAD

Packet Assembler-Disassembler

PAL

Programmable Array Logic

PAM

Pulse Amplitude Modulation

PAMRI

Peripheral Adapter Module Replacement Item

PANS-OPS

Procedures For Air Navigation Services-Aircraft Operations

PAPD

Precise And Accurate Positioning Device

PAR

Precision Approach Radar

PAT

Process Action Team

PATS

Portable Avionics Test Solution

PAU

Passenger Address Unit

PAVES

Programmable Audio Video Entertainment System

PAWES

Performance Assessment And Workload Evaluation

PAX

Passenger

PBD

Place Bearing/Distance (Waypoint)

PBID

Post Burn-In Data

PBX

Public/Private Branch Exchange

PC

Printed Circuit

PC

Personal Computer

PCA

Physical Configuration Audit

PCB

Printed Circuit Board

PCC

Pilot Controller Communication

PCD

Panoramic Cockpit Display

PCI

Peripheral Component Interface (32-Bit Local Bus)

PCI

Protocol Control Information

PCM

Pulse Code Modulation

PCMIA

Personal Computer Memory Card Interface Association

PCO

Protocol Converter Unit

P-Code

GPS Precision Code

PCU

Program Coordination Office

PCU

Passenger Control Unit

PCU

Personal Control Unit

PCU

Power Control Unit

PD

Profile Descent

PDA

Personal Digital Assistant

PDB

Performance Data Base

PDC

Pre-Departure Clearance

PDCU

Panel Data Concentrator Unit

PDD

Package Design Document

PDDI

Product Definition Data Interface

PDF

Primary Display Function

PDL

Program Design Language

PDM

Predefined Controller Text Message

PDM

Project Development Manager

P-DME

Precision Dme

PDN

Public Data Network

PDOP

Position Dilution Of Precision

PDR

Preliminary Design Review

PDS

Persistent Data Storage

PDS

Primary Display System

PDT

Product Development Team

PDU

Protocol Data Unit

PE

Precision Engagement

PECT

Peer Entity Contact Table

PED

Portable Electronic Device

PER

Packed Encoding Rule

PERT

Program Evaluation And Review Technique

PETAL

Preliminary Eurcontrol Test Of Air/Ground Data Link

PF

Power Factor

PF

Pilot Flying

pFAST

Passive Final Approach Spacing Tool

PFC

Primary Flight Computer

PFCS

Primary Flight Control System

PFD

Primary Flight Display

PHARE

Program For Harmonized Atm Research In Europe (Eurocontrol)

PHI

Petroleum Helicopters Inc.

PHY

Physical

PI

Parameter Identifier

PIA

Performance, Integrity And Availability

PICS

Protocol Implementation Conformance Statements

PID

Parameter Identifier

PID

Pilot Information Display

PID

Primitive Identifier

PID

Process Id

PIM

Programmable Infosec Module

PIP

Product Improvement Program

PIREP

Pilot Report

PL

Parameter Length

PL

Project Leader

PLA

Power Lever Angle

PLB

Personal Locator Beacon

PLBTs

Personal Locator Beacon And Voice Transceivers

PM

Program Manager

PM

Phase Modulation

PMA

Parts Manufacturer Approval

PMA

Parts Manufacturer Authority

PMA

Permanent Magnet Alternator

PMAT

Portable Maintenance Access Terminal

PMC

Provisional Memory Cover

PMC

Pci Mezzanine Card

PMG

Permanent Magnet Generator

PMOS

P-Type Metal Oxide Semiconductor

PMP

Project/Program Management Plan

PMS

Performance Management System

PN

Pseudo Noise

PNCS

Performance Navigation Computer System

PND

Primary Navigation Display

PNF

Pilot Not Flying

PNR

Point Of No Return

PO

Part Of

POA

Plain Old ACARS

POC

Point Of Contact

POC

Proof Of Concept

POCC

Project Operations Control Center

POH

Pilot'S Operating Handbook

POM

Program Objective Memorandum

POP

Point Of Presence

POR

Pacific Ocean Region

POSIX

Portable Operating System Interface

POTS

Plain Old Telephone System/Service

PPA

Production Preparation Agreement

PPDU

Physical Layer Protocol Data Unit

PPI

Planned Position Indicator

PPL

Processor-To-Processor Link

PPM

Pulse Position Modulation

PPM

Pages Per Minute

PPM

Parts Per Million

PPP

Point-To-Point Protocol

PPPI

Pre-Planned Product Improvement ("P-Cubed I")

PPS

Packets Per Second

PPS

Pulse Per Second

PPS

Precise Positioning Service

PRAIM

Predictive Raim

pre-preg

Pre-Impregnated (Composite Materials)

PRF

Pulse Repetition Frequency

PRI

Primary Rate Interface

PRM

Precision Runway Monitor

PRN

Pseudo Random Noise

P-RNAV

Precision Area Navigation

ProE

Pro/Engineer (High-End Cad System)

PROM

Programmable Rom

PRS

Public Regulated Service

PRSOV

Pressure Regulating And Shutoff Valve

PS

Power Supply

PSA

Ps Assembly

PSD

Port Sharing Device

PSDN

Packet Switched Data Network

PSE

Packet-Switching Exchange

PSEU

Proximity Sensor Electronic Unit

PSFD

Power Spectral Flux Density

PSL

Projected Service Life

PSL/PSA

Problem Statement Language/ Problem Statement Analyzer

PSM

Power Supply Modules

PSN

Packet Switching Network

PSPL

Preferred Standard Parts List

PSR

Primary Surveillance Radar

PSS

Proximity Sensor System

PSSA

Preliminary System Safety Assessment

PSTN

Public Switched Telephone Network

PSU

Passenger Service Unit

PT

Plane Talk

PT

Total Pressure

PTAN

Precision Terrain Aided Navigation

PTD

Performance Test Domain

PTI

Packet Type Identifier

PTM

Peripheral Transition Module (I/O Interface For Sbc)

PTR

Production Test Requirements

PTS

Problem Tracking System

PTSD

Production Test Specification Document

PTT

Push To Talk

PTU

Power Transfer Unit

PV

Parameter Value

PV

Photovoltaic

PVC

Permanent Virtual Circuit

PVD

Plan View Display

PVT

Position, Velocity, Time

PWM

Pulse-Width Modulation

PWR

Power

PXI

Pci Extensions For Instrumentation

q

Dynamic Pressure (Of Air)

QA

Quality Assurance

QAP

Qa Plan

QAR

Quick Access Recorder

QDR

Quality Defect Report

QDR

Quality Deficiency Report

QEC

Quadrantral Error Corrector

QFD

Quality Function Deployment

QFE

Field Elevation Pressure

QM

Quality Management

QMP

Qm Plan

QMS

Qm System

QNH

Sea Level Pressure

QNT

Quint Networking Technology

QOP

Quality Operating Procedures

QOS

Quality Of Service

QP

Quality Procedure

QPSK

Quaternary Phase Shift Keying

QRH

Quick Reference Handbook

QT

Qualification Test

QVL

Qualified Vendor List

r (rho)

Air Density

R&D

Research And Development

R&M

Reliability And Maintainability

R/W

Read/Write

RA

Radio Altitude

RA

Resolution Advisories

RA

Routing Area

RAA

Regional Airline Association

RAAF

Royal Australian Air Force

RAAS

Runway Awareness And Advisory System

RAC-GAT

Russian/American Coordinating Group For Air Traffic Control

RACs

Runway Analysis Charts

RAD

Rapid Application Development

RAE

Royal Aircraft Establishment (Farnborough)

RAF

Requirements Analysis Folder

RAF

Royal Air Force (Uk)

RAI

Radio Altimeter Indicator

RAIM

Receiver Autonomous Integrity Monitoring

RALA

Request Automatic Line Adapter

RALT

Radar Altimeter

RAM

Random Access Memory

RAMICS

Rapid Airborne Mine Clearance System

RAND

Rand Corp. -Research And Development (Think-Tank For Usaf)

RAP

Required Automation Performance

RATMP

Required Air Traffic Management Performance

RATO

Rocket-Assisted Take-Off

RC&W

Rack Connectors And Wiring

RCAG

Remote Control Air-To-Ground

RCAT

Re-Configurable Cockpit And Avionics Testbed

RCD

Radar Cable Detection

RCE

Radio Control Equipment

RCF

Required Communications Performance

RCL

Radio Communications Link

RCO

Remote Communications Outlet

RCP

Radio Control Panel

RCR

Routing And Circuit Restoral

RCS

Radar Cross Section

RCS

Reaction Control System (Small Thrusters For Control)

RCSU

Romote Control And Status Unit

RCU

Radio Control Unit

RCU

Remote Control Unit

RD

(Taxi) Route Deviation

RD

Routing Domain

RDARA

Regional Domestic Air Route Area

RDC

Routing Domain Confederation

RDDMI

Radio Digital Distance Magnetic Indicator

RDF

Rd Format

RDI

Radio Direction Indicator

RDI

Rd Identifier

RDP

Radar Data Processing

RDR

Radar

RDS

Raymer'S Design System (Aircraft Design Software)

RDSS

Radio Determination Satellite System

RDT&E

Research, Development, Test, And Evaluation

RE&D

Research, Engineering And Development

REA

Radar Electronics Assembly

Recce

Reconnaissance

Recon

Reconnaissance

REDAC

Research, Engineering And Development Advisory Committee (FAA)

REP

Required Environmental Performance

REQ

Request

RER

Residual Error Rate

RERB

Reliability Enhancement And Re-Engining Program

REVS

Radar-Enhanced Vision System

RF

Radio Frequency

RFC

Request For Comments

RFG

Requirement Focus Group

RFI

Radio Frequency Interference

RFI

Request For Information

RFO

Request For Offer

RFP

Request For Proposal

RFQ

Request For Quote

RFU

Radio Frequency Unit

RGB

Red Green Blue

RGCSP

Review Of The General Concept Of Separation Panel (ICAO)

RGS

Relay Ground Station

RH

Radio Handler

RHF

Ridiculously High Frequency

RHO

Response On Handoff

RHSM

Reduced Horizontal Separation Minima

RI

Runway Incursion

RIB

Routing Information Base

RIN

Royal Institute Of Navigation (Uk)

RIP

Routing Information Protocol

RISC

Reduced Instruction Set Computer

RLE

Response On Link Establishment

RLG

Ring Laser Gyro

RLS

Reliable Link Service

RM

Regional Manager

RM&A

Reliability, Maintainability And Availability

RMCDE

Radar Message Conversion And Distribution Equipment

RMI

Radio Magnetic Indicator

RMMS

Remote Maintenance Monitoring System

RMP

Risk Management Plan

RMS

Risk Management System

RMS

Root Mean Square

RNAV

Area Navigation

RNP

Required Navigation Performance

RNP

Required Navigational Performance

RNR

Receive Not Ready

RO

Radio Operator

ROA

Recognized Operating Agency

ROC

Rate Of Climb

ROC

Rest Of Operational Capability

ROD

Rate Of Descent

ROIP

Radio Over Internet Protocol

ROM

Read Only Memory

ROM

Rough Order Of Magnitude

RON

Remain Over Night

RP

Routing Protocol

RP

Rocket Propellant (Kerosene-Based Fuel)

RPDE

Rapid Preliminary Development Effort

RPGs

Rocket-Propelled Grenades

RPM

Revolutions Per Minute

RPOA

Recognized Private Operation Agency (Ccitt)

RPV

Remote-Piloted Vehicle

RPZ

Ramensky Priborostroitelny Zavod (Russian Avionics Manufacturer)

RR

Receive Ready

RRI

Router Reference Implementation

RSDP

Reliable Sequencing Delivery-Confirmation Protocol

RSN

Regional Sub-Network

RSP

Required Surveillance Performance

RSSI

Received Signal Strength Indicator

RT

Radio Telecommunication

RTA

Required Time Of Arrival

RTC

Red Time Clock

RTCA

Radio Technical Commission For Aeronautics

RTCM

Radio Technical Commission For Maritime Services

RTK

Real-Time Kinematic

RTM

Radio Transmission Module

RTO

Rejected Takeoff

RTOS

Real Time Operating System

RTR

Remote Transmitter Receiver Site

RTS

Request To Send

RTSP

Required Total System Performance

RTTI

Run-Time Type Identification

RTU

Radio Tuning Unit

RU

Rack Unit (1 Inch)

RVP

Required Vision Performance

RVR

Runway Visual Range

RVSM

Reduced Vertical Separation Minimum

RWM

R/W Memory

RWP

Required Weather Performance

RWR

Radar Warning Receiver

RX

Receiver

RZ

Return To Zero

s

Sigma-Unit Stress; Air Density Ratio

S

Sigma-Summation Operator

S&A

Sense-And-Avoid

S&C

Stability And Control

S0

Segment 0

S1

Segment 1

SA

Selective Availability

SA

Situational Awareness

SAAAR

Special Aircraft And Aircrew Authorization Required

SAASM

Selective Availability/Anti- Spoofing Module

SAASM/EGI

Saasm/Embedded GPS Inertial System

SABENA

Societe Anonyme Belge D'Exploitation De La Navigation Aerienne

SABM

Set Asynchronous Balanced Mode

SAD

Software Architecture Document

SADT

Software Architecture Design Team

SAE

Society Of Automotive Engineers

SAFIR

Systems Aid For Integration And Fault Reporting

SAI

System Architecture And Interfaces

SAI

System Architecture And Interfaces Subcommittee (Aeec)

SAM

Slot Allocation Management

SAM

South American Region

SAM

Surface-To-Air Missile

SAMM

Surface Area Movement Management

SAMPE

Society For The Advancement Of Materials And Process Equipment

SAP

Service Access Points

SAPPHIRE

Satellite And Aircraft Database Program For System Integrity Research

SAR

Search And Rescue

SAR

Synthetic Aperture Radar

SARPS

Standards And Recommended Practices (ICAO)

SARS

Severe Acute Respiratory Syndrome

SAS

Scandinavian Airlines System

SAS

Stability Augmentation System

SAS

Station Address Set

SASS

Surveillance Analysis Support System (Eurocontrol)

SAT

Static Air Temperature

SAT

Systems And Acceptance Testing

SATCOM

Satellite Communications

SATNAV

Satellite Navigation

SB

Service Bulletin

SBAS

Satellite-Based Augmentation System

SBC

Single Board Computer

SBD

Schematic Block Diagram

SBD

Short Data Burst

SC

Special Committee (Rtca)

SC202

Special Committee 202

SCA

Self-Contained Approaches

SCA

Software Communications Architecture

SCAP

Standard Computerized Airplane Performance

SCAT

Special Category

SCCI

System Controller And Cockpit Indicator

SCD

System Category Diagram

SCE

Super-Conducting Electronics

SCPC

Single Carrier Per Channel

SCSI

Small Computer System Interface

SD

Secure Digital

SD&D

System Development And Demonstration

SDD

System/Software Design Document

SDD

System Development And Demonstration

SDDN

Software-Defined Data Network

SDF

Software Development Folder

SDI

Source Destination Identifier

SDI

Strategic Defense Initiative

SDL

Software Data Loader

SDLC

Synchronous Data Link Control

SDM

Software Development Methodology

SDP

Software Development Plan

SDR

Software Defined Radio

SDR

System Design Review

SDRAM

Synchronous Dynamic Random Access Memory

SDRs

Software-Defined Radios

SDU

Satellite Data Unit

SE

Systems Engineering

SEAD

Suppression Of Enemy Air Defenses

SEC

Aircraft Information Security

SEC

Software Enabled Control

SECAM

Sequential Color With Memory

SEI

Software Engineering Institute

SEL

Select Identifier

SELCAL

Selective Calling

SEMP

System Engineering Management Plan

SESAR

Single European Sky Air Traffic Management Research

SETA

System Engineering And Technical Assistance (Contractor)

SE-Vision

Synthetic-Enhanced Vision

SEWG

Security Working Group

SFAR

Special Federal Regulation

SFC

Specific Fuel Consumption

SFDF

Subsystem Fault Detection Function

SFE

Supplier (Or Seller)-Furnished Equipment

SFT

Software Fault Tolerance

SHM

Structural Health Monitoring

SI&T

Software Integration And Test

SIA

Singapore Airlines

SICAS

Secondary Surveillance Radar Improvements And Collision Avoidance Systems

SICASP

Sicas Panel (ICAO)

SID

Standard Instrument Departure

SIGINT

Signals Intelligence

SIGMET

Significant Meteorological Information

SIM

Subscriber Identity Module

SINCGARS

Single-Channel Ground And Airborne Radio System

SISG

Systems Implementation Subgroup (Iata)

SIT

System Integration And Test

SITA

Societe Internationale De Telecommunications Aeronautiques

SITD

System Integration Test Description

SITP

System Integration Test Plan

SITP/D

Sitp/Description

SITR

System Integration Test Report

SIU

Server Interface Unit

SIWG

Seat Integration

SKT

Station-Keeping Technology

SL

Sea Level

SLA

Service Level Agreement

SLAM

Standoff Land Attack Missile

SLC

Synchronous Link Control

SLH

System Level Health

SLI

System Level Interface

SLM

Standard Length Message

SLoC

Source Lines Of Code

SLS

Satellite Landing System

SLUC

System Level Use Case

SLV

Service Level Verifier

SM

Systems Management

SMA

Surface Movement Advisor

SMART

Standard Modular Avionics Repair And Test

SMB

Serial Mezzanine Board

SMD

Surface Mount Device

SMDS

Switch Multimegabit Data Service

SME

System Management Entity

SMGCS

Surface Movement Guidance And Control Systems

SMI

Standard Message Identifier

SMR

Simulator Maintainability And Reliability

SMR

Specialized Mobile Radio

SMR

Surface Movement Radar

SMS

Short Messaging Service

SMS

Spectrum Monitoring System

SMT

Standard Message Text

SMU

Sensor Management Unit

SMUG

Stores Management Upgrade System

SN

Subnetwork

SNA

System Network Architecture

SNAC

Sn Access

SNCR

Sn Connection Reference

SNDCF

Sn Dependent Convergence Function

SNDCF/P

Sndcf/Protocol

SNICF

Sn Independent Convergence Function

SNLE

Sn Link Establishment

SNMP

Simple Network Management Protocol

SNMPv1

Snmp Version 1

SNPA

Sn Point Of Attachment

SNPDU

Sn Protocol Data Unit

SNR

Signal-To-Noise Ratio

SNSDU

Sn Service Data Unit

SOC

System On A Chip

SOH

Start Of Header

SOI

System Operator Instructions

SOIA

Simultaneous Offset Instrument Approach

SOIT

Satellite Operational Implementation Team

SOM

Software Operator Manual

SON

Statement Of Operational Need

SOP

Standard Operating Procedure

SOW

Statement Of Work

SP

Signal Processing

SPC

Statistical Process Control

SPCR

System Problem/Change Report

SPEAR

System Performance Evaluation And Analysis Reporting

SPI

Serial Peripheral Interface

SPI

Single Process Initiative

SPICE

Stans Preparation Integrator For Cns/Atm Environment (Eurocontrol)

SPM

Software Programmer'S Manual

SPO

System Program Office

SPR

Safety And Performance Requirements

SPS

Software Product Specification

SPS

Standard Positioning Service

SPS

Stratospheric Platform System

SPTF

Spectrum Policy Task Force

SQ

Service Quality

SQAP

Software Quality Assurance Plan

SQB

Sq/Billing Processor

SQD

Sq Data

SQP

Signal Quality Parameter

SRAM

Static Random Access Memory

SRAM

Short-Range Attack Missile

SREJ

Selective Reject

SRM

Selective Reject Mode

SRM

Systematic Risk Management

SRR

System/Software Requirements Review

SRS

Software Requirements Specification

SRTM

Shuttle Radar Topography Mission

SRU

Shop Replaceable Unit

SSA

Source Selection Activity

SSA

System Safety Assessment

SSAC

Source Selection Advisory Committee

SSAP

Strategic Safety Action Plan

SSB

Single Side Band

SSDD

System/Segment Design Document

SSEB

Source Selection Evaluation Board

SSOI

Sidestick Order Indicator

SSR

Secondary Surveillance Radar (ICAO/FAA)

SSS

Surveillance Server System

SSS

System/Segment Specification

SST

Supersonic Transport

SSU

Subsequent Signal Unit

STANAG

Standardization Agreement

STANS

Simulation For A Total Air Navigation System (Eurocontrol)

STAP

Space-Time Adaptive Processing

STAR

Standard Terminal Arrival Route

STARS

Standard Terminal Automation Replacement System (FAA)

STB

Systems Test Bed

STC

Supplemental Type Certificate (FAA)

STCA

Short-Term Traffic Advisory

STD

Standard

STD

System Technical Description

STDMA

Self-Organized Time Division Multiple Access

STDMA

Synchronized Time Division Multiple Access

STF

Satcom Tracking Facility

STIU

Satellite Telecommunications Intermediate Unit

STK

Scandinavian Authorities

STM

Serial Transition Module

STOL

Short Take-Off And Landing

STOVL

Short Take-Off/Vertical Landing

STP

System Test Plan

STP/D

Stp/Description

STR

System Technical Report

STR

System Test Report

STVS

Small Tower Voice Switch

STX

Start Of Text

SU

Signal Unit

SUA

Special Use Airspace

SUM

Software User Manual

SUPPS

Regional Supplementary Procedures

SUT

System Under Test

SV

Space Vehicle

SVC

Switched Virtual Circuit

SvRR

Service Readiness Review

SVS

Synthetic Vision System

SVU

Satellite Voice Unit

SW

Software

SWIT

Software Integration And Test

SWIT

Switched Virtual Circuit

SWTP

Software Technology Plan

SWTRR

Software Test Readiness Review

SYS

System Identifier

SYSCAT-B

System Category-B (FAA Message Format)

SysCI

System Configuration Item

SysDD

System Design Document

T&E

Test And Evaluation

T&M

Time And Materials

T/W

Thrust-To-Weight Ratio

TA

Traffic Advisory (Tcas)

TAA

Technical Advanced Aircraft

TAB

Tab-Delimited Aircraft Data Table From Rds

TABI

Tailorable Advanced Blanket Insulation (Tps)

TACAN

Tactical Air Navigation

TAF

Terminal Aerodrome Forecast

TAF

Terminal Area Forecast (ICAO)

TAIC

Transport Accident Investigation Commission

TAIS

Total Airport Management System

TAMD

Theater Air And Missile Defense

TAOARC

Terminal Area Operations Aviation Rulemaking Committee (FAA)

TAP

Tower Automation Program

TAR

Trials Atn Router

TAS

Traffic Advisory System

TAS

True Airspeed

TASS

Terminal Air Surveillance System

TAT

Total Air Temperature

TAWS

Terrain Avoidance Warning System

TC

Transport Connection

TCA

Terminal Control Area

TCAD

Traffic Collision Alerting Device

TCAS

Traffic Alert Collision Avoidance System

TCAS

Ii Traffic Alert Collision Avoidance System Ii

TCDL

Tactical Common Data Link

TCP

Transmission Control Protocol

TCP/IP

Tcp/Internet Protocol

TCS

Tower Communications System

TD

Technical Documentation

TDD

Time Division Duplexed

TDF

Training Device Facility Requirements

TDLS

Tower Data Link Services (System)

TDM

Time Division Multiplexer

TDMA

Time Division Multiple Access

TDMA

Time Division Multiple Access

TDOA

Time Difference Of Arrival

TDST

Tower Data Services Terminal

TDWR

Terminal Doppler Weather Radar

TECOM

Technical Committee

TEDS

Transducer Electronic Data Sheet

TEI

Text Element Identifiers

TELCO

Telephone Company

TEN-T

Trans-European Network - Tansport

TERCOM

Terrain Contour Matching

TERPS

Terminal En Route Procedures

TERPS

Terminal Instrument Procedures (FAA)

TES

Tactical Exploitation System

TES

Trials End System (For Atn)

TESCOS

Terminal Coordination System

TFC

Traffic

TFM

Traffic Flow Management

TFR

Temporary Flight Restriction

TFR

Terrain-Following Radar

TFTP

Trivial File Transfer Protocol

TG

Transmission Gate

TG4

Maximum Time Between Gsif'S Timer

TG5

Maximum Link Overlap Timer

TGT

Target

TIA

Telecommunications Industry Association

TIF

Traffic Information File

TIP

Tower Integrated Program

TIS

Traffic Information Service

TIS

Traffic Information System

TIS-B

Traffic Information Service - Broadcast

TL

Terminal Location (ACARS/Afeps)

TLS

Target Level Of Safety

TM

Timer-Media Access Control

TM

Technical Manual

TM&O

Telecommunications Management And Operations

TMA

Traffic Management Advisor

TMC

Traffic Management Coordinator

TMC

Test, Monitor And Control

TMLLF

Terrain Masking Low-Level Flight

TMMAC

Tactical Airborne Moving Map Capability

TMSI

Temporary Mobile Subscriber Identification

TMS-T

Traffic Management System Transition

TMU

Traffic Management Unit

TO

Technical Order

TO/GA

Take Off/Go Around

TOC

Transfer Of Communications

TOFT

Tactical Operational Flight Trainer

TOGW

Takeoff Gross Weight

TOR

Terms Of Reference (ICAO/FAA)

TOW

Takeoff Weight

TP

Test Point

TP4

Transport Protocol Class 4

TPA

Taxi Positional Awareness

TPAW

Turbulence Prediction And Warning System

TPDU

Transport Protocol Data Unit

T-PEDs

Transmitting Portable Electronic Devices

TPF

Transaction Processing Facility

TPL

Terminal Permission List (ACARS/Afeps)

TPM

Technical Performance Management

TPS

Thermal Protection System (For Reentry)

TPUs

Terminal Processing Units

TQM

Total Quality Management

TQM

Total Quality Management

TRACON

Terminal Radar Approach Control

TRB

Technical Review Board

TRD

Transit Routing Domain

TRL

Technology Readiness Level

TRNS

Terrain Referenced Navigation System

TRR

Test Readiness Review

TS

Time Source

TS

Transport Service

TSA

Technical Services Agreement

TSA

Transportation Security Administration

TSAP

Transport Service Access Point

TSAs

Temporary Segregated Areas

TSB

Transportation Safety Board

TSC

Term Service Commitment

TSC

Transportation System Center

TSDPs

Technical Support And Data Packages

TSDU

Transport Service Data Unit

TSG

Technical Subgroup

TSG

Technical Standards And Guidelines

TSO

Technical Standard Order (FAA)

TSP

Transmitted Signal Power

TSPDs

Technical Support And Data Packages

TSS

Technology Support And Services

TSTM

Time Source Transition Module

TT

Test Tools

TT&C

Tracking, Telemetry, and Command

TTG

Time To Go

TTL

Transistor-Transistor Logic

TTNT

Tactical Targeting Networking Technology

TTP

Time-Triggered Protocol

TTS

Time To Station

TTW

Time To Waypoint

TURB

Turbulence

TVC

Thrust Vector Control

TVE

Total Vertical Error

TWDL

Two-Way Data Link Communications

TWIP

Terminal Weather Information For Pilots

TWP

Technical Work Program

TX

Transmit

UA

Unmanned Aircraft

UA

Unnumbered Acknowledgment

UART

Universal Asynchronous Receiver Transmitter

UAS

Unmanned Aircraft Systems

UAT

Universal Access Transceiver

UAT

Universal Access Transponder

UATP

Universal Air Travel Plan

UAV

Unmanned Or Uninhabited Aerial (Or Air) Vehicle

UBI

Uplink Block Identifier

UCAV

Unmanned Or Uninhabited Combat Air Vehicle

UCD

Universal Cockpit Display

UCI

User Computer Interface

UD

User Data

UDF

Unducted Fan

UDP

User Datagram Protocol

UH

Utility Helicopter

UHF

Ultra-High Frequency

UI

Unnumbered Information

UIR

Upper Information Region

UL

Uplink

ULV

Ultra-Low Voltage

ULWG

Upper Layer Working Group

UML

Unified Modeling Language

UMTS

Universal Mobile Telecommunications System

UP

Universal Platform

UPRM

Universal Platform Resource Management

UPS

Uninterruptible Power Supply

UPS

United Parcel Service

UPSMS

Ups Management Supply

URET

User Request Evaluation Tool

URL

Universal Resource Locator

USB

Universal Serial Bus

USC

United States Code

USCG

U.S. Coast Guard

UTC

Universal Time Coordinated

UTP

Unshielded Twisted Pair

UUT

Unit Under Test

UV

Ultraviolet

UWB

Ultra Wide-Band

V

Volt

V&V

Verification And Validation

V/STOL

Vertical/Short Take-Off And Landing

V/ULOS

Versions Of The Havequick And VHF/UHF Line Of Sight

V1

Takeoff Decision Speed

V2

Takeoff Safety Speed

v8208

VDLM2 8208 Protocol

VAC

Volts Alternating Current

VAGR

VDLM2 Agr

VAMs

Value-Added Manufacturers

VANS

Value-Added Network Services

VAP

Value-Added Processor

VAR

Value-Added Reseller

VAS

Value-Added Services

VASI

Visual Approach Slope Indicator

VC

Virtual Circuit

VCB

Virtual Circuit Bridge

VCDU

Video Control Display Unit

VCP

Video Cassette Player

VCU

VDL Control Unit

VDC

Volts Direct Current

VDD

Version Description Document

VDGS

Visual Docking Guidance System

VDL

VHF Data Link

VDL4

VHF Data Link Mode 4

VDLM2

VDL Mode 2

VDLM3

VDL Mode 3

VDLM4

VDL Mode 4

VDR

VHF Data Radio

VDU

Visual Display Unit

VEE

Visual Engineering Environment

VER

Version

VFD

Virtual Flight Deck

VFR

Visual Flight Rules

VG

Variable Geometry

VG/DG

Vertical Gyro/Directional Gyro

VGA

Video Graphics Adapter

VGA

Video Graphics Array

VGS

VDLM2 Ground Station

VHF

Very High Frequency

VHSIC

Very High Speed Integrated Circuit

VIA

Versatile Integrated Avionics

VIFF

Vectoring In Forward Flight

VIP

Verbal Intruder Positioning

VLR

Visitor Location Register

VLSI

Very Large Scale Integration

VMC

Visual Meteorological Conditions

VMCs

Vehicle Management Computers

VMD

Video Motion Detection

VME

Versa Module Eurocard Bus

VME

VHF Management Entity (Vmebus)

VMECC

Versa Module Eurocard Card Cage

VMON

Vnms Health Monitoring

VMS

Vehicle Management System

VNAV

Vertical Navigation

VNE

Never-Exceed Speed

VNMS

VDLM2 Network Management System

VNO

Maximum Structural Cruising Speed

VOCRAD

Voice Radio

VOIP

Voice Over Internet Protocol

VOR

VHF Omni-Directional Radio Range

VPN

Virtual Private Network

VPT

Virtual Procedure Trainer

Vr

157 Knots

VR

Rotation Speed

VREF

Approach Reference Speed

VRG

VDL Reference Guide

VSAT

Very Small Aperture Terminal

VSCS

Voice Switching And Control System

VSD

VDL Specific Dte Address

VSM

Vertical Separation Minimum

VSRS

Voice Switch Replacement System

VSWR

Voltage Standing Wave Radio

VTAM

Virtual Telecommunications Access Method

VTAS

Voice, Throttle And Stick

VTO

Vertical Take-Off

VTOL

Vertical Take-Off And Landing

VTS

Vessel Traffic System

W/S

Wing Loading

WAAS

Wide Area Augmentation System

WACS

Wireless Airport Communication System

WADGPS

Wide Area Differential GPS

WAEA

World Airline Entertainment Association

WAFC

World Area Forecast Center

WAN

Wide Area Network

WARC

World Administrative Radio Conference

WARP

Weather And Radar Processor

WAS

Wide Area Search

WASP

Wireless Access Service Point

WATRS

West Atlantic Route Structure

WBS

Weight Balance System

WBS

Work Breakdown Structure

WC

Waypoint Capture

WDM

Web Data Manager

We

Empty Weight

WG

Working Group

WGS

World Geodetic System

Wi-Fi

Wireless Fidelity

WIG

Wing In Ground-Effect

wilco

Will Comply

WINN

Weather Information Network

WIP

Wide Area Augmentation System Integrity Panel

WIPPS

Wide-Body Integrated Platform Protection System

WJHTC

William J. Hughes Technical Center (FAA)

WLG

Wireless Ground-Link

WMO

World Meteorological Organization

WMSCR

Weather Message Switching Center Replacement

WNW

Wideband Networking Waveform

Wo

Takeoff Gross Weight

WORM

Write-Once/Read Many (Optical Disk Technology)

WP

Work Procedure

WPR

Waypoint Position Report

WPT

Waypoint

WQAR

Wireless Quick Access Recorder

WRC

World Radiocommunication Conference

WRC

World Radio Conference

WS

Windshear

WSDDM

Weather Support For Deicing Decision-Making

WSR

Weather Surveillance Radar

WWG

Wireless Working Group

WWW

World Wide Web

WX

Weather

WXR

Weather Radar

X

Cancel

XFR

Transfer

XG

Next Generation

XID

Exchange Identification

XL-ETFE

Cross-Linked Ethylene Tetraflourothylene

XMC

Switched Fabric Mezzanine Card

XMIT

Transmit

XMTR

Transmitter

XPDR

Transponder

XS

Societe Internationale De Telecommunications Aeronautiques (SITA)

XTI

X-Open Transport Interface

XTP

Express Transfer Protocol

XTRA

X-Ban Thin Radar Aperture

XWIND

Crosswind

Z

Zulu (Greenwich Mean Time)

ZFW

Zero Fuel Weight

ZOC

Zone Of Convergence

ZVF

Zero Velocity Filter