Acrónimos

A


A/C Aircraft
A/D Analogue-to-Digital
A/I Anti-Ice
ABC Auxiliary Power Unit Start Bus Contactor
ABM Auto Brake Control Module
ABV Auxiliary Power-Unit Bleed-Valve
AC Advisory Circular
ACARS ARINC Communications Aircraft Reporting System
ACCEL Accelerometer, Acceleration
ACE Actuator Control Electronics
ACMP Alternating-Current Motor-Driven Pump
ACN Aircraft Classification Number
ACP Audio Control Panel
ACT Active
ACT Altitude Compensated Tilt
ADA Air Data Application
ADC Air Data Computer
ADF Automatic Direction Finder
ADI Attitude Director Indicator
ADS Air Data System
ADS-B Automatic Dependent Surveillance - Broadcast
ADSP Air Data Smart Probe
ADSEL Address Selective
AFC Automatic Frequency Control
AFCS Automatic Flight Control System
AFE Above Field Elevation
AFIS Automatic/Airborne Flight Information System
AFM Airplane Flight Manual
AFT Afterward
AFU Artificial Feel Unit
AGC Automatic Gain Control
AGL Above Ground Level
AHC Attitude Heading Computer
AHRS Attitude & Heading Reference System
AICC Auxiliary Integrated Control Center
AID Aircraft Installation Delay
AIL Aileron
AIOP Actuator Input-Output Processor

AIP Aeronautical Information Publication
AIS Aeronautical Information Services
ALC Automatic Level Control
ALD Actual Landing Distance
ALT Altitude
ALTS Altitude Select
ALU Arithmetic & Logic Unit
AMM Aircraft Maintenance Manual
AMPL Amplifier
AMS Air Management System
ANN or ANNUN Annunciator
ANSI American National Standards Institute
ANR Automatic Navigation Realignment
ANT Antenna
AOA Angle of Attack
AOC Aircraft Operating Certificate / Airline Operational Communications
AOG Aircraft On Ground
AOM Aircraft Operating Manual
APA/P Autopilot
APC Autopilot Computer
APE Autopilot Engage
APM Aircraft Personality Module
APPAPPRAPR Approach
APS Altitude Preselect
APSBAPSBK APS Bracket
APU Auxiliary Power Unit
ARINC Aeronautical Radio Incorporated ARM Armed AS Airspeed
ARM Armed

ASC APU Start Contactor
ASCB Avionics Standard Communications Bus
ASDA Accelerate Stop Distance Available
ASEL Altitude Select
ASI Airspeed Indicator
ASTM American Society of Testing Material
AT Autothrottle
ATA Air Transport Association of America
ATC Air Traffic Control
ATE Automatic Test Equipment
ATIS Automatic Terminal Information System
ATN Aeronautical Telecommunications Network
ATS Air Turbine Starter
ATT Attitude
ATTCS Automatic Takeoff-Thrust Control-System
ATTND Attendant
AUTO Automatic
AUX Auxiliary
AVAIL Available
AVNX Avionics
AZ Azimuth
AZFW Actual Zero Fuel Weight
------------------------------

B


B/A Bank Angle
BARO Barometric
BCB/C Back Course
BCD Binary Coded Decimal
BDI Bearing Distance Indicator
BFO Beat Frequency Oscillator
Bit A bit is the smallest unit of information in computer and communication theory, representing a logic '1' or logic '0'. It is derived from contracting the terms binary bit.
BITE Built In Test Equipment
BLB/L Back Localiser
BRG Bearing
--------------------------------------

C


CAA Civil Aviation Authority
CAD Computer Aided Design
CAP Capture
CAS Calibrated Airspeed
CASE Computer Aided Software Engineering
CAT Clear Air Turbulence
CB Circuit Breaker
CBT Computer Based Training
CDU Control Display Unit
CE Course Error
CFIT Controlled Flight Into Terrain
CH Channel
CHP Course Heading Panel
CKT Circuit
CLB Climb
CLK Clock
CLR Clear
CMC Central Maintenance Computer
CMD Command
CMOS Complementary Metal Oxide Semiconductor
CMPTR Computer
CNTL Controller
COMPCOMPTR Compensation, Compass or Comparator
CONT Controller
CORR Correction
COS Cosine
CP Cross Pointer/Control Panel
CPU Central Processor Unit
CRC Cyclic Redundancy Check
CRS Course
CRT Cathode Ray Tube
CS Cross Side
CSDB Commercial Serial Data Bus
CT Control Transformer
CTRL Controller
CTVAL Count Valid
CVR Cockpit Voice Recorder
CW Carrier Wave D/A Digital to Analogue
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D


DA Drift Angle
DADC Digital Air Data Computer
DADS Digital Air Data System
DAU Data Acquisition Unit dB Decibel
DBI Distance Bearing Indicator
DCP Display Control Panel
DDM Difference in Depth of Modulation
DEFL Deflection
DEG Degree
DEL Delete
DEMOD Demodulator
DET Detector, Detent
DEVDEVN Deviation
DH Decision Height
DIFCS Digital Integrated Flight Control System
DIFF Differential, Difference
DISPL Displacement
DIST Distance
DMA Direct Memory Access
DME Distance Measuring Equipment
DN Down
DOS Disk Operating System
DPU Display Processor Unit
DSB Double Side Eand
DSP Display Selector Panel
DSR Desired
DUP Duplicate
---------------------------------------------------------------


G


GAG/A Go Around
GCS Ground Clutter Suppression
GEN Generator
GHz Giga-Hertz
GIGO Garbage In Garbage Out
GMT Greenwich Mean Time
GND Ground
GP Glide Path
GPS Global Positioning System
GPSSU Global Positioning System Sensor Unit
GSG/S Glideslope
-------------------------------------------------------------------


H


HB Heart Beat
HBM Heart Beat Monitor
HDG Heading
HDG SEL Heading Select
HDLC High Level Data Link
HF High Frequency
HIRF High Intensity Radiated Field
HSI Horizontal Situation Indicator
HUD Heads Up Display
HYD Hydraulic
Hz Hertz
----------------------------------------------------------------------


I

I/O Input/Output
IAS Indicated Air Speed
ICAO International Civil Aviation Organisation
ID Identification
IF Intermediate frequency
IFE In Flight Entertainment
ILS Instrument Landing System
INC-DEC Increase-Decrease
IND Indicator
INS Inertial Navigation System
INTGL Integral
INTLK Interlock
INTPT Interrupt
INV Invert
IRC Instrument Remote Controller
IRS Inertial Reference System
ISO Isolation
IVV Instantaneous Vertical Velocity
-------------------------------------------------------------------------

K


Kelvin
Kg Kilogram
kHz Kilo Hertz
KN Knots
KTS, Kts Knots
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L


Left
L/C Inductive/Capacitive
LAT Lateral, Latitude
LBS Lateral Beam Sensor
LCD Liquid Crystal Display
LF Low Frequency
LH Left Hand
LNAV Lateral Navigation
LOC Localiser
LONG Longitude
LORAN Long Range Navigation
LOS Line Of Sight
LRN Long Range Navigation
LRU Line Replacement Unit
LS Low Speed
LSB Lower Side Band
LSK Line Select Key
LSS Lightning Sensing System
LTG Lightning
--------------------------------------------------------


M


MB Marker Beacon
MCP Mode Control Panel
MDA Minimum Descent / Disconnect Altitude
MF Medium Frequency
MFD Multifunction Display
MHz Mega Hertz
MIC Microphone
MKR Marker
MLS Microwave Landing System
MM Middle Marker
MMO Maximum Mach Operating
MODEM Modulator/Demodulator
MOM Momentary
MON Monitor
MOSFET Metal Oxide Semiconductor Field Effect Transmitter
MPU Multi-function Processor Unit
MSB Most Significant Bit/ Byte
MSG Message
MSI Mach Speed Indicator
MSP Mode Selector Panel
MTMTRIM Mach Trim
MTBF Mean Time Between Failure
MTBR Mean Time Between Removal
MTBUR Mean Time Between Unscheduled Removal
MUX Multiplexer
-----------------------------------------------------------------------------------


N


NAV Navigation
NC No Connection or Normally Closed
NCD No Computed Data
ND Navigation Display
NDB Non Directional Beacon
NEG Negative
NFF No Fault Found
NM(s) Nautical Mile(s)
NMOS N-type Metal Oxide Semiconductor
NO Normally Open
NOC Navigation on Course
NORM Normal
NTF No Trouble Found
NVM Non Volatile Memory
-------------------------------------------------------------------------------------

O


O/C On Course
OAT Outside Air Temperature
OBS Omni Bearing Selector
OM Outer Marker
OSC Oscillator
OSS Over Station Sensor
OVRD Override
-----------------------------------------------------------------------------------


P


P0 Ambient air pressure
PI Air intake pressure
P2 Compressor outlet pressure (single spool engines)
P3 Combustion chamber outlet pressure (single spool engines)
P4 Jet pipe pressure (single spool engines)
P-DME Precision Distance Measuring Equipment
P/R Pitch/Roll
PA Passenger Address
PA Power Amplifier
PAM Pulse Amplitude Modulation
PAST Pilot Activated SelfTest
PATT Pitch Attitude
PB Push Button
PCB Printed Circuit Board
PCU Power Control Unit
PCWS Pitch Control Wheel Steering
PES Passenger Entertainment System
PFD Primary Flight Display
PISO Parallel In Serial Out
PITCH SYNC Pitch Synchronisation
PLC Path Length Control
PMOS P-type Metal Oxide Semiconductor
PMS Performance Management System
POS Position
POST Power On System Test
PPI Plan Position Indicator Pressure Load divided by cross-sectional area. Nm² or Ib in²
PREV Previous
PRF Pulse Repetition Frequency
PRIPRIM Primary
PROC Processor
PROG Programmer, Programming
PROM Programmable Read Only Memory
PSU Power Supply Unit
PTR Press To Reset
PW Pitch-wheel or Pulse-width
PWM Pulse-width Modulated
PWR Power
------------------------------------------------------------------------------


Q


QAR Quick Access Recorder
QC Quality Control
QEC Quadrantal Error Corrector
QTY Quantity
QUAD Quadrant
-------------------------------------------------------------------------------


R


Right
RA Resolution Advisory
RAR/ARAD ALT Radio Altimeter
RAM Random Access Memory
RCB Radio Communications Bus
RCVR Receiver
RDR Radar
REF Reference
REFL Reflection
REL Release
REQ Request
RET Return
RETR Retract
REV Reversionary
RF Radio Frequency
RFI Request For Information
RG Rate Gyro
RGB Red/Green/Blue
RH Right Hand
RLG Ring Laser Gyroscope
RMI Radio Magnetic Indicator
RMU Radio Management Unit
RNRNAV Area Navigation
RNAPP RNAV Approach
RNG Range
RSB Radio System Bus
RTR/T Receiver/Transmitter, Rate of Turn
RUD Rudder
RVT Rotary Variable Transformer
RX/TX, Rx/Tx Receiver/Transmitter
RZ Return to Zero
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S


SAT Static Air Temperature
SATCOM Satellite Communication
SBY, STBY Standby
SCR Silicon Controlled Rectifier
SCS Single Channel Select
SDI Source Destination Index
SEC Seconds, Secondary
SEC Sector
SEL Select
SELCAL Selective Calling
SG Signal/Symbol Generator
SID Standard Instrument Departure
SIG Signal
SIN Sine
SIPO Serial In Parallel Out SLS Side Lobe Suppression
SPD Speed
SPKR Speaker
SQ Squelch
SRC Source
SRN Short Range Navigation
SSB Single Side Band
SSEC Static Source Error Correction
STA EL Station Elevation
STAB Stabilised, Stabilisation
STAR Standard Terminal Arrival Route
STC Sensitivity Time Control
STP Steep
STR, STRG Steering
SVO Servo
SYNC Synchronisation
SYS System
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T


TA Traffic Advisory
TACAN Tactical Air Navigation System
TAS True Air Speed
TAT Total Air Temperature
TBA To Be Assigned
TBD To Be Decided
TCAS Traffic alert Collision Avoidance System
TCS Touch Control Steering
TEMP Temperature Test To make certain, by using the necessary test equipment that a component functions correctly
TGT Turbine Gas Temperature
TGT Target
TKE Track Error
TLA Torque Limit Aileron
TLE Torque Limit Elevator
TOGA Take-Off Go-Around
TP Test Point
TRK Track
TRU Transformer Rectifier Unit
TSO Technical Standard Order
TTG Time To Go
TTL Tuned To Localiser
TURB Turbulence
TX Transmit
------------------------------------------------------------

U


UART Universal Asynchronous
RX/TX UB Utility Bus
UHF Ultra High Frequency
ULB Underwater Locator Beacon
ULD Unit Load Device (elemento unitario de carga)
UNCPLD Un-coupled
USB Upper Side Band
--------------------------------------------------

V


V/L VOR/ Localiser
VA Volt Ampere
VAL Valid
VALT Vertical Altitude
VANG Vertical Angle
VAPP VOR Approach
VASL Vertical Altitude Select
VBS Vertical Beam Sector
VFLC Vertical Flight Level Change
VHF Very High Frequency
VLD Valid
VLF Very Low Frequency
VLV Valve
VMO Velocity Maximum Operating
VNAV Vertical Navigation
VOR VHF Omni-Range
VORTAC Collocated VOR and Tacan Stations
VPTH Vertical Path
VRT, VERT Vertical
VS Vertical Speed
VSI Vertical Speed Indicator
VSWR Voltage Standing Wave Ratio
-------------------------------------------------------------

W


WAAS Wide Area Augmentation System
WL, W/L Wings Level
WO Washed Out
WOW Weight On Wheels
WT Weight
WX Weather Radar
WXP Weather Radar Panel
XCVR Transceiver
XFR Transfer
XMIT Transmit
XMTR Transmitter
XPDR Transponder
XPNDR Transponder
XTK Cross Track
-------------------------------------------------------

Y


YD, Y/D Yaw Damper
YDS Yaw Damper System

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