MaxSea Operator Manual version 12.6 - Furuno USA

MaxSea Operator Manual version 12.6
Calculate Routing From a Selected Point
This function will be used depending on your choice:
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1. If the boat's GPS system fails and no position is coming in.
2. To choose the most comfortable and safest route depending on the current weather forecast.
3. If you want to launch a routing from a point other than your own current position for instance, from a
competitor’s position. (see also related topic: Selecting an Optimal Routing)
You must firstly plot an isolated waypoint or mark indicating a chosen position on the chart (refer to the paragraph Plotting
isolated points in the chapter User data).
You can use the right-click menu on this point to access its information window by choosing Mark Properties. Then
modify, where necessary, this point's time and date according to a competitor's position. Click in the date and/or Time
corresponding fields and enter the new values.
Note: If you wish plan the route of a competitor, rather plot a mark than a waypoint because you will be able to
modify date and/or time of the selected position. Repeat the process as often as you wish to calculate
each competitor's routing.
IMPORTANT - The date, time and position of this point should not be out with the geographical and time zones of
the open weather file.
Lastly, select the function from the Performance menu for the isochrons to be calculated. Launching a competitor’s
routing is not different from launching a routing from your own position, you can refer to the other paragraphs of this
chapter to find out how to manage competitor routings (displaying the route list, alternative routings, etc.)
Weather Routing displayed on the Chart
Weather Routing is displayed on the chart along with the isochrons.
From a waypoint
• Isochrons are displayed on the chart as alternate yellow and purple curves. Each numbered isochron is drawn
in yellow every 2 hours on the chart and purple every 24 hours.
• All route plans indicated by isochrons are optimal route plans (drawing in black); they show route plans
according to the varying criteria ( bearing more to the north, more to the south, etc.) with varying distances from
the target waypoint .
• Once the last isochron has been drawn the program calculates the optimum route plan (drawing in red) for
reaching the selected waypoint.