The Seakeeper 30HD is built to eliminate up to 95% of boat roll on vessels up to ~85 tons. Larger vessels can be fitted with multiple units to achieve optimal results. Unlike traditional external fins, the Seakeeper 30HD requires only modest electrical power and has no external appendages—meaning no drag or risk of snags.
Take a Look Under the Hood
Weight 3,920 lbs (1,778 kg)
Dimensions 54.3 L x 55.9 W x 43.5 H (inches)
1.38 L x 1.42 W x 1.11 H (meters)
Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment.
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.
New Dash Display
Control your Seakeeper with the push of a button on our new user-friendly dash display. Not only is the display simple to use, but it integrates into your existing dash units for optimal performance.
Proceed with Confidence
Ideal for Boats ~ 75’+
Small & Lightweight
Seakeeper weighs only a small fraction of the boat’s displacement
Eliminate Boat Roll
Eliminate up to 95% of boat roll and the danger, fatigue, anxiety, and seasickness that go with it
Flexible & Efficient
Unlike traditional fins, Seakeeper is completely internal and can be installed virtually anywhere