Furuno 711c 用户手册
4. USER MENU
4-4
Counter rudder is usually not required for small boats. When your boat zigzags a lot
before settling in the new course, increase the counter rudder setting.
before settling in the new course, increase the counter rudder setting.
4.1.2
Trim gain
The NAVpilot continually monitors the boat's trim in order to keep the trim sensitivity
optimum. A lower setting is common because boat's trim usually does not change
quickly. A large number changes the trim compensation value more frequently. Too
high of a setting may result in the following problems.
optimum. A lower setting is common because boat's trim usually does not change
quickly. A large number changes the trim compensation value more frequently. Too
high of a setting may result in the following problems.
• Trim sensitivity is over-affected, resulting that a trim appears in both port and star-
board directions alternately.
• Trim compensation mechanism responds to the yawing, resulting in more serious
oscillation of ship's heading.
Note: Trim gain is not available with Fantum Feedback
TM
.
To automatically set the trim, do as follows:
1. Open the [Parameter Setup] menu.
2. Rotate the Course control knob to select the current setting for [Trim Gain] then
2. Rotate the Course control knob to select the current setting for [Trim Gain] then
push the knob.
3. Rotate the Course control knob to select [Auto] or [Manual] then push the knob.
4. For [Auto] go to step 5. For [Manual], do as follows:
4. For [Auto] go to step 5. For [Manual], do as follows:
1) Rotate
the
Course control knob to select the current value and push the
knob.
2) Rotate
the
Course control knob to set a value then push the knob (setting
range: 1 to 20).
The default value is automatically calculated according to length of your boat,
entered on the [Ship’s Characteristics] menu at installation.
The default value is automatically calculated according to length of your boat,
entered on the [Ship’s Characteristics] menu at installation.
5. Press the
key three times to close the menu.
Counter rudder:
small setting
small setting
Counter rudder:
proper setting
proper setting
Large course error
Intended
course
course
The counter rudder feature functions to smoothly
return ship's heading toward intended course.
return ship's heading toward intended course.
Fast
Heavy
High
Slow
Light
Low
Speed
Load Condition
[Counter Rud.]