AIR ABBREVIATIONS
AFIS Airfeild flight infomation service
AIREP Report for position and weather in flight
AMSL Above mean sea level
APU Auxiliary power unit
ASDA Runway accelerated stop distance
ASI Air speed indicator
ATC Air traffic control
ATIS Automatic terminal infomation service
BACKTRACK Taxi back down the runway
CB`S Cumulo nimbus (thunder cloulds)
CONFLICTING Conflicting traffic , ect , possible collision course
FIR Flight infomation region
GMC Ground movement controler
GPU Ground power unit
GREENS Landing gear down and loked indicators
IAS Indicated air speed
IAF Instument flight rules
ILS Instument landing system
LARS Lower airspace radar survice
NAVCOM Combined communication and navigation radio
ORBIT Fly in circle
PAR Precision approach radar
QFE Barometric pressure at areodrome
RVR Runway visual range
SAR Search and rescue
SID Standard instrument departure
SQUAWK Swich transponder on
STOL Short take-off and landing
TAF Terminal area forcast
TAR Terminal area radar
TMA Terminal control area
VASI Runway lights angled to give a visual glide slope
VFR Visual flight rules
VOLMET Continuous weather forcast
VSI Vertical speed indicator
VTOL Vertical take-off and landing
WX Weather