Rev 8 Mar/2007
KMD 550/850 Pilot's Guide
33
OSGB: Ordnance Survey of Great Britain
PAI: Pacific International data area
PETE: Pointer ETE
RAD: Radial
REF: Reference
RMI: Radio Magnetic Indicator
RTCA: Radio Technical Commission for Aeronautics
sec: seconds
TAS: True Airspeed
TAT: Total Air Temperature
TD: Time Difference
TMA: Terminal Control Area
TOPO: Topographical Data (i.e. coastlines, terrain, rivers,
lakes etc)
TSO: Technical Standard Order
TWR: Tower
UIR: Upper Information Region
UNIC: Unicom
UNS: Unspecified
UTC: Universal Coordinated Time (same as Greenwich
Mean Time)
UTM: Universal Transverse Mercator
V: Volts
VDL: VHF Data Link
VHF: Very High Frequency
VOR: Very High Frequency Omni-directional Radio
Range
VRP: Visual Reference Point
W: Watts
wpt: Waypoint
XM: XM Satellite Weather
µsec: microsecond
Definitions, Acronyms & Abbreviations
KMD 550-850 PG R8 3/6/07 11:22 AM Page 33