Goto Waypoint" Mode - Furuno FEA-2107 Operator's Manual

See the figure below to find how location of dynamic WP is defined when the "Go to Waypoint" mode is used.
28.5.1

"Goto waypoint" mode

•
Mode selection: GO TO WAYPOINT
•
GO TO WAYPOINT and ROUTE lamps are lit.
•
Tiller can be used to set radius, but not course, which is set automatically.
•
Steering is course controlled with set radius.
•
If wind, current, etc. affect the ship between waypoints, the system tries to prevent the ship from drifting from
the planned route. The system has three means to prevent drifting from the planned route, and they are most
effective when used together. If cross-track error is used alone, the own ship stabilizes typically in a constant
off-track position. The means are:
•
Measured cross-track error from the center line, which is always active
•
Drift compensation available from route parameters
•
Gyro error compensation available from route parameters
•
If wind, current, etc. affect the ship during turns, the ship will drift (inside or outside) from planned turn, which
is displayed on the radar screen. This kind of turn is called an "assisted turn".
•
Can be used when the ship has accurate position source available.
•
Normally, the Goto Waypoint mode uses dynamic location of waypoint. However, if alarm 2013 is active, a
non-dynamic waypoint is used.
Wheel over line
for non-dynamic
WP used by
"Go To Track"
Originally planned
turn
Originally planned
WP
DYNAMIC WP
Wheel over line
for dynamic WP
28. Trackpilot
28-9