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Compass mode
This mode requires a speed sensor and a compass sensor.
With the compass mode the pilot uses the compass heading data from the Topline
bus to steer the boat on a set heading.
Rudder mode
The rudder mode allows the rudder to be set at a fixed angle. The value can be
between – 35° and + 35° to the mid-ship position.
Autopilot in GPS mode
In GPS mode the Gyropilot steers the boat to a route provided by the GPS or the
navigation software connected to the NMEA input of your Topline system.
2.11.4 Pilot settings
Select the pilot’s settings page:
Select the parameter that needs to be modified, press to modify it.
Press right and left arrow to change the value. Once you have the right value, press
to save your choice.
Rudder coefficient
Principle: the Gyropilot processor automatically adjusts the value of the rudder
angle to apply which is proportionally opposite to the boat speed. The faster the boat
sails the lower the rudder angle.
This can be tuned to achieve best results by modifying the rudder coefficient between
the 1 and 53 value range. The higher the value is, the greater the rudder angle
proportionally to boat speed. The default setting is 6, which is valid for a 30 footer.
Examples: a Figaro 2 or similar boat will require this factor to be 15, for a 60 footer it
can be 20 and a multihull will be better with 30.
Note: if there is no boat speed data on the Topline bus, the Gyropilot uses SOG
(Speed Over Ground) if available.
A good way to learn the effect of this value setting is to enter an extreme
value, i.e. 50, and note the different behaviour of the boat before and after
the setting change.
Counter rudder / gain
When you are steering you will often apply “counter rudder” by moving the rudder to
the opposite direction allowing the heading to be maintained without overshoot. The
pilot can be set up to control the boat in a similar way and the importance of this
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