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Update (for Chart Portfolio) : A procedure of reflecting the update data supplied by Update CD on the
imported chart.
Update CD : Chart CD containing the chart data updated from Base CD. Base CD data has
been imported.
USER CODE : A user-specific code assigned by JRC. Required in using ARCS and S-63
charts.
UTC : Universal Time, Coordinated
VRM : Variable Range Markers
WOL : Wheel Over Line
WOP : Wheel Over Point
WPT : Waypoint
WPT-WPT : The division of the leg specified by two waypoints. Displays data between two
consecutive waypoints.
XTD : Cross Track Distance
XTL : Cross Track Limit