Bowthruster control.
Automatic Centering Feature:
If:
(1) the vessel’s GPS is working and
(2) the Active button has been depressed and
(3) the “GPS/Signal Bypass” button has
not
been depressed,
... the stabilizers and the system will remain engaged
unless speed
drops below a predetermined value.
If the speed drops below that value, then the stabilizers switch to the “Auto Fins
Centering Mode” and they center. The ACTIVE button flashes until the vessel resumes
adequate speed, at which time flashing will cease and the fins will be active once again.
That means that the stabilizer operations are automatic unless over-ridden
by the operator or the GPS is inoperative.
However, if (1) the vessel’s GPS is inoperative, or (2) the “GPS/Signal Bypass Button”
is pressed, this automatic feature is inhibited and the “Center” and “Active” buttons must be
manually operated.
When either of these conditions is true, care should be exercised to
be sure that the fins are centered when not moving forward
through the water
or in
heavy following seas!
Other controls:
The
Roll Angle
control determines how far the fins rotate to correct rolling. The
Roll
Rate
control determines how quickly the fins respond to the vessel’s rolling motion. Setting
either control at the extremes end of its range is usually to be avoided; once set, the stabilizers
will self-correct based upon GPS inputs.
Full stabilizer details are in The Naiad Operating manual on the boat
.
4Q3: Thruster
Hele Mai
is equipped with a bow thruster with a "joystick" control at
each helm. This assists you in getting extra close to a dock after you have put
the boat within three feet or so using the engine...
To operate the thruster:
!
Turn on the thruster by pressing both "on" buttons simultaneously
until the lights stay lit;
!
Then operate the "joystick" to run the thruster.
The thruster only stays "ON" for about four minutes to protect it from overuse. After it
then turns off, you will have to turn it "on" again!
Do not overuse the thruster! Operating it in "jabs" of 10-15 seconds at a time should be
enough...it cannot be run for extended times without shutting down when its thermal overload
protective relay opens!
The thruster runs from its own 12-volt battery under the forward berth which is charged
by the ship's charging system. It’s a good idea to run the generator while operating the
thruster.
The bow thruster fuse is in the Master Stateroom under the berth.
Section 4Q: Running Gear 4.46
