Sperry Marine Visionmaster FT ECDIS, Руководство пользователя

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ECDIS User Guide Routes
65900012 8-47
Required Speed
Required Speed enables the user to specify a
desired arrival time for any selected waypoint
on a monitored route. When a desired arrival
time is entered the system calculates own ship
speed required to the present leg, and speed
required for the remaining legs in order to
achieve this arrival time.
To change the desired ETA and required
speeds do the following:
1. To change the ETA:
i. Select the waypoint from where the
speed calculations are to be made.
ii. Click inside the Desired ETA field
on the specific data to be changed.
The field data changes to green
(editable), the selected data is
highlighted and an editing window
appears directly below the ETA field.
iii. To move the date or time back click
on the Down arrow, to move the date
or time forward click on the Up arrow.
To move the highlight back or forward (e.g. from Month to
Year) click on the side arrows.
iv. With the correct ETA data displayed click on the OK button.
2. When the desired arrival time is set the
system calculates the speed required on the
present leg and remaining legs of the route
in order to achieve the specified ETA. The
required speeds are shown in the
Calculated fields.
3. To specify a speed for the current leg and
remaining legs select the Manual radio
buttons and click in the Manual fields, the
text changes to green (editable). Move the
trackball right to increase the value and left
click again to accept the value.
4. Click the Calculated radio button to see the
speed required to meet the desired ETA on the current leg and
remaining legs based on the manual speeds entered.