B&G Network Pilot - Manual (Page 41)

41
MAN OVERBOARD PROCEDURE (OPTIONAL)
The Man Overboard Button (MOB) is an optional extra that activates
the Network PILOT's man overboard alarm procedure. For this facility to
operate you must have a speed sensor input, it will not work with
Manual Speed Bands or Speed Over Ground.
It's purpose is to aid you in the recovery of the person or persons that
may have been lost overboard. The procedure will help to guide the
boat back to the point where the MOB was first pressed, by giving the
bearing and distance to that point.
Power boat owner's can use the Network PILOT for Automatic
Recovery, the Network PILOT will control the steering of the boat to
execute a "Williamson Turn" and return the boat along the reciprocal
course.
Sail boats owner's however, because of the need to tack or gybe, have
to use Manual Recovery, the bearing and distance displays must be
followed and the boat steered back to the person in the water.
When the MOB is pressed the internal alarms will sound in all Network
Unit, except Network WIND and TACK, and the LCDs will show the
message shown opposite. The alarm is silenced by pressing any of the
five keys in the lowest row on any display (except WIND and TACK).
WILLIAMSON TURN
Power boats will follow an autopilot steered course similar to the
diagram shown below.
The full procedures for Manual and Automatic Man Overboard
Recovery are described overleaf. They should be practised and
explained to everybody on board your vessel because one day it could
help save a life.