Designed to eliminate up to 95% of boat roll on ~45’ - 54’ vessels, up to ~25 tons, the Seakeeper 7HD is completely internal, requires only modest electrical power, and can be installed virtually anywhere on board.
Proceed with Confidence
Durability
Designed for longer, rougher use. Seakeeper HD will keep you stable and safe, no matter how long the job
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
Take a Look Under the Hood
Weight - 1,210 lbs (550 kg)
Dimensions - 33.5 L x 35.6 W x 27.9 H (inches) 0.852 L x 0.903 W x 0.708 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.
Vacuum Sealed
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.
Active Control
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.