Section 2 - On the Water
Page 20 90-8M0093150 eng MAY 2014
NOTICE
The vessel personality that determines how a boat responds to joystick commands was created for typical boat loading and
operation in ideal boating conditions. Variations in wind, current, and boat loading will have a substantial effect on the
performance of joystick operations. For example, a boat that is loaded heavily to the bow will behave differently than a boat
that is loaded heavily to the stern. The vessel personality cannot anticipate nor compensate for these variables. It is the
operator's responsibility to make the necessary corrections by changing the loading of the boat or by performing additional
maneuvers to track the desired path.
The joystick provides a single lever interface to maneuver the vessel. Operating the vessel with the joystick is well suited for
close quarter and docking operations in most situations. You can move and rotate the joystick at the same time, allowing
intricate movements in tight quarters.
The computer control system automatically calculates the steering angle of each engine, the throttle level, and the proper gear
to push or rotate the boat in a direction corresponding to a joystick movement or twist. For example, if you move the joystick
sideways, the computer control system commands the engines to apply sideways thrust to the boat. Rotating the joystick
prompts the computer to command forces that rotate the boat about its center.
The joystick is proportional, which means the greater distance from the center that the joystick is moved, the more thrust that is
applied to move the boat in that direction. The available demand on the engine is limited while using the joystick.
For joystick control of the boat:
1. At least two engines must be running for the joystick to operate.
• For triple‑engine applications, these must be the outer two engines.
• For quad‑engine applications, this must be at least one port and one starboard engine (i.e., both outers, both inners,
port inner and starboard outer, or port outer and starboard inner). The joystick will not operate with only the two
starboard or the two port engines running.
2. For best control, trim all engines to the full‑down position and allow the auto trim function to adjust the engines to the
optimal trim angle.
• If the engines are already trimmed down, the operator need not change the trim. The computer controlled system will
automatically trim the engines up to the vessel propulsion personality predetermined angle when the joystick is
engaged.
• If the engines are trimmed up, the operator should manually adjust the trim to full down, provided doing so does not
create a hazard. The system will not automatically trim the engines down when the joystick is engaged.
•
For more details, refer to Auto Trim.
IMPORTANT: After joystick operation and before attempting to put the vessel on plane, the trim position must be set to an
angle that allows for normal operation. The computer controlled system will not return the engines to the position they were
at before the joystick was engaged.
3. Move all of the electronic remote control levers to neutral. For Zero Effort controls, shift into neutral and place the throttle
levers at idle.
4. Move the joystick in the direction that you want the boat to move, or twist the joystick in the direction that you want the boat
to rotate. The joystick can be moved and rotated at the same time.
The following picture gives a limited example of the basic responses to inputs from the joystick, and should be used for
reference only. The pictures show an approximate correlation between joystick inputs and the corresponding movement of the
vessel. Exact maneuvers will require multiple joystick inputs and additional user corrections to maintain the maneuver.
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