18
4.5.
TACKING
The GyroPilot 3 allows you to tack in any mode: compass, apparent wind, true wind or polar.
Tacking or gybing is executed by a long press on the +/-10 key of a pilot control box.
4.6.
MOB
The radio transmitter must first be activated in scan mode (see transmitter manual).
Man over board (MOB) is a safety manoeuvre. When the receiver no longer receives
messages from the radio transmitter (this is called a radio loop break), the autopilot initiates a
MOB procedure.
Depending on the settings of the "Man over board" parameter of the autopilot there are 2
procedures:
•
Crew mode: the navigation system triggers an audible alarm but does not cause any
steering changes.
•
Solo mode: the navigation system triggers an audible alarm and then takes the
control in order to is hove to. It uses all the data available to it to carry out the
manoeuvre as accurately as possible.
4.7.
DOWNGRADED MODES
In the event of a sensor failure, the autopilot keeps control of the helm during the "Time
before cut-off" or temporarily changes the steering mode.
In true wind mode, if the wind vane is disconnected from the system, the GyroPilot 3
computer automatically switches to compass mode. If the wind vane is connected again to
the system, the processor will automatically switch back to the selected wind mode.
If the bus is shut down with the autopilot switched on, the autopilot does not disengage the
steering control immediately. It blocks the rudder and waits for the "time before cut-off" to
elapse before handing over. This also applies if the processor bus cable is pulled out.
4.8. ALARM DELAY
Acknowledgement of the alarm is the action carried out by the skipper on a display or remote
control to stop the alarm. When the alarm is acknowledged, a time delay is activated during
which lower priority alarms and of the same type are disabled.