The MDI Model 14 Roll Stabilizer Controller is a distinctive technical achievement in marine motion control system design and is currently in operation on many yachts. Derived from the MDI Model 12 multi-axis Ride Control System, the Model 14 uses the same micro-controller based design architecture and features similar operator control panels with multi-function "soft-pages" on the Main Display Panel and auxiliary functions on the Backup Panel.

This Three-Term system detects and corrects roll angle, rate and acceleration using proprietary software algorithms to generate and issue exactly the right control signal to the hydraulic servo valves for fast and accurate fin positioning in all sea conditions. The system features several alarms including low hydraulic oil level and high oil temperature, fins not tracking, fins not centered, excessive accelerations, and others.

Through the main display, the operator can monitor several system parameters such as fin command, fin position, hydraulic system status, roll angle and rate and others and can optimize system performance through adjustment of roll angle, roll rate and roll acceleration sensitivity, slip-stream fin alignment, automatic fin centering and angle attenuation speed and others.

As an option, the Model 14 can be upgraded to dampen pitch and heave motions in addition to roll if appropriate control surfaces, such as trim tabs, are fitted (go to Ride Control). It can also incorporate an autopilot that uses the roll stabilizer fins and rudders or waterjets to provide integrated roll and yaw stabilization.