Unicoms may provide such airport information as active
runway, wind direction and velocity and other conditions
of importance to pilots.
Universal Coordinated Time (UTC): Greenwich Mean
Time, or the time at the Prime Meridian in Greenwich,
England. Also referred to as Zulu time.
UTC Differential: The difference in time between that at
the present position and UTC.
V
Very High Frequency Omnirange (VOR): A
navigational aid that transmits signals such that a receiver
can indicate its current radial or bearing from the
transmitter.
W
Waypoint: A navigational fix used in area navigation and
defined by latitude and longitude coordinates.
P/N 560-0119-00 A-5
Apollo 360 Map Display Glossary of Navigation Terms