Section 2 - On the Water
90-8M0093150 eng MAY 2014 Page 27
In extreme weather and sea conditions, Skyhook may not be able to maintain a vessel's heading and position. This is especially
true if the vessel's heading is perpendicular to the wind or current. If the wind or current forces the vessel away from the
position where Skyhook was set, Skyhook will start to turn the bow of the vessel back to the original set point. As the vessel is
pushed further away, Skyhook will continue to rotate the bow to the set point until the bow eventually points directly at the set
point.
• If at any time in this process Skyhook is able to overcome the conditions enough to hold a position, it will cease turning the
bow.
• If the conditions lessen and Skyhook is able to maneuver the vessel back toward the original set point, Skyhook will rotate
the bow back to the original heading as it maneuvers the vessel toward that set point.
• If the vessel is forced far enough away from the set point, Skyhook will notify the operator that it is not able to maintain
position. Skyhook will continue to attempt to return to the set point, unless the operator assumes control of the vessel.
To minimize the effects of extreme conditions on the operation of Skyhook, Mercury Marine recommends adjusting the vessel's
heading so that its bow (or for some vessels, its stern) faces into the wind or the current.
Skyhook can unexpectedly disengage due to a loss of engine power or GPS signal. If this happens Skyhook will sound an
alarm, the engines will return to neutral, and the vessel will drift with the wind and current. You must be ready to take control of
the helm at all times.
Auto Heading
Auto heading allows the boat to automatically maintain a compass heading while the boat is underway.
Engaging Auto Heading
1. Ensure that the starboard engine key switch is in the run position.
2. Place at least one running engine in forward gear.
NOTE: Auto heading does not function with the ERC levers in neutral or reverse.
3. Steer the boat to the desired compass heading.
4. Press the auto heading button. The button illuminates and a single beep sounds acknowledging engagement. A double
horn beep sounds if the auto heading mode does not engage.
a - Port turn (course adjust) button
b - Starboard turn (course adjust) button
c - Auto heading button and light
d - Resume button and light
• The VesselView screen will change to autopilot.
• The steering wheel will self‑center and be held in an electronic detent position.
NOTE: If you must turn the steering wheel for any reason, you will need to apply sufficient force to overcome the
electronic detent.
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