Nav mode, Simrad ap50 autopilot 44 – Simrad AUTOPILOT SYSTEM AP50 User Manual
Page 46

Simrad AP50 Autopilot
44
20221032B
NAV Mode
.12NM
340.7
Gyro1
SETUP
Move : , 
Adjust : 
Backlight
Contrast
Steering function
 Rudder
Seastate AUTO
Rudder 0.50
Count Rudder 1.40
N
More
The NAV mode will not work satisfactorily before AUTO mode 
is set-up and working properly. 
Backlight 
Same procedure as in STANDBY mode. 
Contrast 
Same procedure as in STANDBY mode. 
Steering Function 
Same procedure as in STANDBY mode. 
Seastate Filter 
Same procedure as in AUTO mode. 
Rudder 
Same procedure as in AUTO mode. 
Counter Rudder 
Same procedure as in AUTO mode. 
340.7
Gyro1
SETUP
Move : , 
Adjust : 
Speed Log 04.9kt
Off heading lim 10°
Nav Gain 3.5
Turn mode ROT
RateOfTurn 
 240°/min
Thruster sens 01°
N
.12NM
More
Speed Log 
Same procedure as in STANDBY mode. 
Off Heading Lim 
Same procedure as in AUTO mode. 
Nav Gain 
The Navigation Gain determines how many degrees the 
autopilot must change the vessel’s heading in order to bring the 
vessel back on track using the Cross Track Error and the 
vessel’s speed. 
The higher the value of the Nav Gain, the greater the correction. 
If the value is set too low, the vessel may use a long time to 
reach the track. It can also drift away at strong side current. 
Too high value will cause the vessel to overshoot or oscillate 
around the track. 
The default setting depends on the boat length and the range is 
0.5 to 7.0. 
Turn Mode 
Same procedure as in AUTO mode. 
ROT/RAD 
Same procedure as in AUTO mode. 
