How To Reverse Sailing Order Of A Route; Geometry Check Of Route; Route Optimization; Available Route Optimization Strategies - Furuno FEA-2807 Operator's Manual

13.5.9

How to reverse sailing order of a route

You may reverse the order of waypoints in a planned route. Put the cursor on Route in the status bar then click the
Plan button to open the Plan Route dialog box. Click the WPT tab to open the WPT page. Check Enable changes.
Click the Reverse route button.

13.5.10 Geometry check of route

When you add a new waypoint, modify a waypoint or change other waypoint data, the message "Impossible turn at
WPT" may appear (in red). It means that the geometry of route makes it impossible for the ship to sail along a
certain leg. Typically it is enough if you do the following, on the WPT page in the Plan Route dialog box.
1. Decrease the radius of turn of the waypoint or one of its neighbors.
2. Change lat/lon position of the waypoint or its neighbors.
13.6

Route Optimization

13.6.1

Available route optimization strategies

After all waypoints are inserted, optimize the route from the Parameters page in the Plan Route dialog box.
Optimization calculates all parameters for route steering (course and distance between two waypoints, maneuvering
start point, WOP, etc.). There are four methods for optimization:
Max Speed: This calculation uses the maximum speed defined in the ship parameters and multiplies by all
reduction factors (weather, ice, fouling, etc.) together with speed limits given for each waypoint to generate ETA.
Time Table: Calculates the speed required in order to arrive at the destination at the required ETA. Maximum speed
is never exceeded.
Max. Profit: This calculation takes into account the fuel cost and the fixed cost of the ship and calculates the most
profitable speed (highest profit per time unit).
Min. Cost: This calculation takes into account the fuel cost and the fixed cost of the ship and calculates the speed
that gives the minimum total cost.
13.6.2

How to optimize a route

You can define Estimated Time of Departure (ETD), desired number of waypoints and Estimated Time of Arrival
(ETA) on the Parameters page in the Plan Route dialog box to optimize your route.
1. Put the cursor on Route in the status bar then click the Plan button to open the Plan Route dialog box. Click the
Parameters tab to open the Parameters page. Check Enable changes.
2. Select desired optimization strategy from the Optimize field. Spin the scrollwheel to select desired strategy then
push the scrollwheel.
3. Enter speed limit, ETC/UTC and ETA/UTC (Max. speed not required) in respective boxes.
13. Route Planning
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