Jeppesen Marine Workboat Navigator 1.3 - Manual (Page 110)

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ET
A
Management
ETA - No Active Route
This sub-panel is available if you are not using an active route and you have river
mile mark data loaded. To open this sub-panel, click the down arrow in the top right
corner of the ETA panel.
TIP:
Workboat Navigator continuously monitors the boat’s distance from the
calculated path to the selected river mile to determine if the point can be
reached. To prevent jumping in the ETA values under normal river conditions,
the system waits until the boat moves more than 1/10th of a statue mile off
the path before recalculating the path and if not reachable changing ETA
values to never or N/A.
Fields in this sub-panel include:
Average Speed
Use Vessel SOG. Select to use your boat’s speed over ground (SOG) when
determining the distance and time to the ETA.
Specify SOG. Type a speed over ground (SOG) that will be used when
determining the time and distance to the ETA regardless of your boat’s
current SOG.
Clear All User ETAs. Click this button to reset both of the User ETA
selections to no values. The Select Ending River Name value resets to the
river on which you are currently located.
NOTE:
The selection you make under Average Speed applies to all ETAs.
Figure 11.2 - ETA Panel for River Mile Marks
User ETA Selection:
User ETA#. Select User ETA #1 through a User ETA # up to 5, if applicable,
to set the position in the NavInfo panel for the ending point you specify under
Select Ending River Mile.
Show Route. Click this button to display all of the river abbreviations
between your current river location and the selected ending river. If you have
selected an ending river that is not connected to your boat’s current river
location, an error message appears.
Select Ending River Name. Select the river name that contains the ending
point for your voyage. The selection default is the river on which you are
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