Furuno 520 Operator's Manual page 42

4. MENU OPERATION
Setting parameters manually
When MANUAL-CALM, MODERATE or ROUGH is selected at the previous paragraph, set
MANUAL PARAMETERS as below.
You can set three parameters for MANUAL function: Weather, Rudder gain and Counter
rudder.
The default manual parameters provide for comfortable steering of a boat 35 feet in length
at the speed of 10 kt. When speed is increased to 20 kt, the manual parameters are
automatically reduced 66%.
1. Rotate the course control knob to select MANUAL PARAMATERS from the
PARAMETER SETUP menu.
2. Press the course control knob to show the following table.
WEATHER
RUDDER GAIN
COUNT RUDDER
Refer to the followings to set parameters:
Boat longer than 35 feet: Set parameters smaller than default parameters.
Boat shorter than 35 feet: Set parameters larger than default parameters.
3. Rotate the course control knob to choose WEATHER-CALM setting, and then press the
course control knob.
4. Rotate the course control knob to set value (Setting range: 1° to 10° for weather).
5. Press the course control knob.
6. Set WEATHER-MODERATE, WEATHER-ROUGH and RUDDER GAIN and COUNT
RUDDER similarly (Setting range: 0.1 to 2.0 for rudder gain, 0.1 to 4.0 for counter
rudder).
7. Press the [MENU] key to close the table.
4-4
Parameter setting
100%
66%
10 kt
Example of Manual parameter
CALM
1°
0.4
0.2
20 kt
Ship's speed
SEA STATE
MODERATE
2°
0.5
0.3
ROUGH
3°
0.6
0.4