Collision Avoidance Maneuver In Route Steering; 26.10 Steering Performance; 1Expected Steering Performance For Going Ahead - Furuno FMD-3200 Operator's Manual

26. AUTOPILOT OPERATIONS
26.9.2

Collision avoidance maneuver in route steering

Route steering is often interrupted by a collision avoidance maneuver, but there are
also several other reasons to interrupt route steering. There are several possibilities
to set the collision avoidance or any other maneuver:
• Use the Non-Follow-Up steering lever to directly control rudder pumps.
• Use the Override steering.
• Use the Follow-Up rudder control. (Change mode from NAVI
• Use the local Autopilot Heading control. (Change mode from NAVI
*1
REMOTE CONTROL on FAP-3000, TC on PR-9000
*2
HEADING CONTROL on FAP-3000, HC on PR-9000

26.10 Steering Performance

Below is a summary of how different environmental conditions change steering per-
formance.
26.10.1 Expected steering performance for going ahead
Environmental
conditions
Calm sea, no wind,
no current
Moderate wind and/
or current
High wind and/or
current
Wind and/or current
changes slowly.
Sudden change of
wind and/or current
(For example sud-
den change from no
current to 5 kn cur-
rent perpendicular
to track)
Fast change of
speed (ex: speed
decreased from 20
to 7 kn)
26-30
Heading control=
AUTO
COG is approx. the Ship follows monitored
same as Set route.
Course in Autopilot.
Ship has a tenden- Ship follows monitored
cy to drift. route.
Ship is drifting. 1) Ship follows monitored
route but may go outside
channel limit area.*
2) Ship may have a prob-
lem following monitored
route inside the channel
limit, however.
There is no com- Ship follows monitored
pensation for route.
change.
There is no com- 1) Ship may go outside
pensation for channel limit but is "re-
change. turned" to center of chan-
nel.*
2) Ship can have a prob-
lem following monitored
route inside the channel
limit.
There is no com- Ship follows monitored
pensation for route, but may need full
change. channel limit area.
GoAW (FAP-2000/3000)
GoAW+RC(PR-6000)
GoAW+TC (PR-9000)
GoAW+NAVI (PT-500A)
GoAW+NAV (PT-900)
*1
to HAND.)
*1
to AUTO*
Mode
GoAW (FAP-2000/3000)
GoAW+RC(PR-6000)
GoAW+TC (PR-9000)
GoAW+NAVI (PT-500A)
GoAW+NAV (PT-900)
Ship follows monitored
route accurately.
Ship follows monitored
route accurately.
1) Ship follows monitored
route.*
2) Ship can have a prob-
lem following monitored
route inside the channel
limit.
Ship follows monitored
route accurately.
1) Ship is kept within chan-
nel limit.*
2) Ship can have a prob-
lem following monitored
route inside the channel
limit.
Ship follows monitored
route, but may need full
channel limit area.
2
)