User Manual

Theory of operation

The deep-V hulls of modern pleasure boats are designed to provide you with a smooth ride in rough

water. The deeper the V, the more need for trim tabs to keep the boat levelled. A Roll or sideward’s

inclination is dependent on the wind and passenger location. The longitudinal inclination, also called the

trim angle, depends on the speed and loading. When the course is changed, winds change direction and

you need to trim the boat. When passengers move, trim again. This need, to constantly adjust the trim

tabs, takes the driver’s attention, which can even be a safety risk during high-speed operations.

ACS takes care of the work for you. When changing course, winds shift, or passengers move, the

attitude of the boat is automatically corrected by adjusting the trim tabs.

Roll and pitch axes

ACS R (Roll) automatically adjusts the boat to the optimum attitude in the roll axis, eliminating heeling.

This is the best choice for small and fast boats with minimal bow rise.

ACS RP (Roll and Pitch) automatically adjusts the boat to the optimum attitude both in the roll and pitch

axes. The pitch control improves visibility and enables speeds in the “semi-planing” range. It also

improves the “hole shot”. Large boats benefit from this feature.

ROLL PITCH

Turning detection

While making a turn, the boat leans inwards. Thanks to the built-in gyros, the system is able to detect

heading changes and prevent automatic corrections while turning. Unnecessary adjusting is avoided

and the boat exits the turn with the optimum attitude. The AUTO indicator blinks while making the turn

to indicate that the ACS is blocked and not active at that moment.

Once set up on a steady course again, the ACS continues measuring and correcting the attitude, taking

the altered conditions into account.