General
GLOSSARY
AL250 Flight Manual
MEP
NDB: Non-Directional Beacon
NWA: Nose Wheel Angle (degrees)
OAT: Outside air temperature
OBI: Omni-bearing indicator
OBS: Omni-bearing selector
OM: Outer Marker
OVRD: Override
PAPI: Precision Approach Path Indicator System
PAR: Precision Approach Radar
PAX: Passenger
PFD: Primary Function Display
Pressure altitude: Altitude measured from standard sea level pressure (1013.2 hPa) by
means of a pressure (barometric) altimeter.
psi: Pounds per square inch - unit for pressure (see below under ‘units’)
PSIG: Pounds per Square Inch Gauge
QTG: Qualification Test Guide
RA: Resolution Advisory
RMI: Radio magnetic i ndi cator
RPM: Revolutions per minute - unless otherwise indicated, in this manual the term refers to
the propeller revolutions.
RVR: Runway Visual Range as measured in the touchdown zone area (meters or feet)
SAT: Static Air Temperature
SOC: Statement Of Compliance
SSALS: Simplified Short Approach Light System
SSALSR: Simplified Short Approach Light System with Runway alignment indicator lights
STD: Synthetic Training Device
T/O: TakeOff
TA: Traffic Advisory
TACAN: Ultra-high frequency Tactical Air Navigational aid
TAS: True Airspeed is the airspeed of an airplane relative to undisturbed air which is the
CAS corrected for altitude, temperature and compressiblility.
TAT: Total Air Temperature
TCAS: Traffic Collision Avoidance System
TGFD: Trim, Gear and Flaps Display.
Rev. 1.8 © 2021 ALSIM - All Rights Reserved 0-11
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