NAIAD fin movement is commanded by a control system that senses the vessel’s motions and issues precise control commands to the rest of the Roll Stabilizer System in proportion to those motions. As the controller senses the slightest roll motion, the fins respond instantly and in exactly the proper proportion to neutralize the vessel’s tendency to roll, without over-or under-correcting. NAIAD fins stop rotating the moment the roll tendency has been neutralized, regardless of their position or the vessel’s speed at the time. NAIAD systems have been proven to automatically reduce roll motion by up to 90% over a wide range of vessel operating speeds. NAIAD systems are available to control vessel Roll while underway (“Active Roll Stabilization”), to control Roll at zero speed (“Stabilization at Anchor”), and to control Roll, Pitch, Yaw and other undesirable vessel motions (“Ride Control”). NAIAD control systems may also be retrofitted to existing stabilizer systems (“Stabilizer Control Conversions”).