Northrop Grumman Sperry Marine VisionMaster FT, User Manual

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Navigation Tools Radar/Chart Radar User Guide
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Status
The Status tab enables you to monitor the anchor drag after the ship is
anchored. All values in the Status tab are read-only, generated from values
entered at Planning.
Anchor Watch Mode
Click the Drop Anchor button to switch to
Anchor Watch mode, the anchor drop display is
drawn, set to ownship hawsepipe position. The
Anchoring Feature On check box in the
Anchorage area is automatically switched on
when Drop Anchor is activated.
During the Anchor Watch mode, the application
periodically monitors the ship's position to see if
the anchor is being dragged. An anchor drag
alert is generated if movement is detected in
relation to the Anchor Point.
A line is drawn from the hawsepipe to the anchor
location. This line is initially at zero length and
represents any movement own ship makes from
anchor position, based on wind, tide or current
(see the figure below). Any movement is
monitored on the Anchorage area of the Status
folder.
Suitable warnings are generated when own ship passes over the drag ring
(inner ring) and beyond the swing ring (outer ring). The warnings are
escalated to alarms when own ship sails beyond the drag and swing rings.
If the
Anchoring Feature On check box is switched off, the Status tab
continues to show data based on the last placed anchorage position.
The following sub sections describe the values shown in the Anchoring
Status folder.