Sperry Marine Visionmaster FT ECDIS, User Manual

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Routes ECDIS User Guide
8-20 65900012
The following leg attributes are read-only values which automatically
change if the route data is changed:
•
Leg distance - the leg distance between each waypoint.
•
Leg Bearing - the measured angle of the leg in true degrees.
To edit the Departing Leg data do the following:
1. To change the leg speed or XTD limit click in the relevant field the
text changes to green (editable). Move the trackball left or right to
change the values.
2. To change the departing or approaching leg from Rhumb Line to
Great Circle click on the drop down arrow to the right of the field.
Default Leg and Turn Attributes
The first leg of a route inherits planned speed and XTD limit attributes from
system configurable default values. Subsequent legs inherit attributes from
the preceding leg.
The first waypoint of a route inherits turn radius from a system configurable
default value, and turn speed from the preceding leg’s planned speed.
Subsequent waypoints inherit turn radius from the preceding waypoint, and
turn speed from the preceding leg. Turn rate is calculated based on turn
radius and turn speed, but turn rate may also be used to adjust turn radius.