Geographic Wind Direction (Twd); Wcv, Waypoint Closing Velocity - Furuno FI-303 Operator's Manual

5.6.1

Geographic Wind direction (TWD)

To get this function, set NAV = On C14 (See 6.1.4).
Text [TWD] is displayed shortly, then is the abbreviation for
Wind directions displayed, [SSW], [NO], [WNW] etc. together
with the numerical direction below. The graphic direction is also
displayed by pressing PAGE one or more times until the display
to the right is displayed together with the "pointer". If the
Compass transducer is missing but there is a GPS installed, you
may use the GPS as a reference for heading under the criteria
that the vessel must be moving. Change C33 from USE Hdc to
USE COG.
(See 6.3.3)
When the boat is laying still, the TWD will be random
readings if COG is used.
You may also check long term geographical Wind shifts by
entering a "marker" at present Wind direction as a remainder.
The "marker" will stay until power off or by clearing the function.
A Wind shift of 5° will be easy to detect after hours of sailing.
Select function [TWD 360 ] with PAGE, and when the text
[TWD] is flashing press SET.
The "marker" is now set. When there is a constant Wind shift,
you will see this "marker" as a slow blinking reminder of the
origin Wind direction.
Each sector represents 5°
5.6.2

WCV, Waypoint Closing Velocity

To get this function, set NAV = On C14 (See 6.1.4).
The text [WCV] is displayed with the actual speed towards your
Waypoint if a Waypoint is selected in your GPS navigator.
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