NorthStar Navigation Pilot System NS3300 - Manual (Page 42)

42
Northstar NS3300 Pilot
8-3 Adjusting the steering parameters
Problem: drifts off course to one side
Increase ratio.
Increase trim gain.
Increase response. or
Problem: boat moves too far off course closely before the rudder turns to correct the course
Decrease ratio.
Decrease counter rudder gain.
Decrease trim gain.
This causes wear on the steering linkage and uses power.
Decrease response.
Reduce ratio.
Reduce counter rudder gain.
Problem: rudder turns too frequently
Problem: oscillations from side to side build up
Decrease ratio.
Problem: after a large course change, boat takes too long to settle to new course
Decrease counter rudder gain
Problem: after a large course change, boat overshoots and oscillates before settling to new course
Increase counter rudder gain