AviationOnline for EASA Part-66 & Groundschool

AviationOnline
for EASA Part-66 & Groundschool

Aviation Glossary

An A-Z of all aviation abbreviations

This online glossary provides a comprehensive list of all major aviation abbreviations.


S

SAARU

secondary attitude air data reference unit

SATCOM

satellite comminication (system)

SCU

signal conditioning unit

SDM

speaker drive module

SDU

satellite data unit

sec

secondary

SEL

select

SELCAL

selective calling

SEPC

secondary electrical power contactor

SEU

seat electronics unit

SO

SOP

standard operating procedure

SPM

surface position monitor

SPM

stabiliser position module

SLV

synch lock valve

sta

station

STAB

stabiliser

STCM

stabiliser trim control module

SQ

sql

squelch

SVC

service

SVD

seat video display

SVU

seat video unit

sw

switch

sys

system

T

TAC

thrust asymmetry compensation

TACAN

tactical air navigation system

TAS

true airspeed

tach

tachmometer

TAI

thermal anti-icing

TARMS

Threat Assessment and Response Management System

TAT

total air temperature

TB

track ball

TBB

transfer bus breaker

TC

TCAS

traffic alert and collision avoidance system

TCC

turbine case cooling

TDU

telephone distribution unit

TIC

turbine impingement cooling

TLA

three letter abbreviation!

TLA

thrust level angle

TMCF

thrust management computing function

TMCS

thrust management computing system

TO

TO/GA

take-off/go-around

TPMU

tyre pressure monitor unit

TRK

track

TRU

transformer rectifier unit

T/R

thrust reverser

TSA

tail strike assembly

TVBC

turbine vane and blade cooling

TVC

turbine vane cooling