Crafted for ~60-75 foot boats, up to 56 tons, the Seakeeper 18 is designed to eliminate up to 95% of boat roll. The Seakeeper 18 is completely internal, requires only modest electrical power, and can be installed virtually anywhere on board.
Size does matter
Which Seakeeper is right for you?
No one knows more about how you boat than you! Enter your boat information and we will guide you through the options so you can decide which Seakeeper is right for you.
Seakeeper 18 shown to scale here on a 73' Absolute Navetta.
Stabilization for Any Occasion
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
Take a Look Under the Hood
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Weight |
2,460 lbs (1,116 kg) |
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Dimensions |
42.5 L x 43.2 W x 33.6 H (inches) 1.078 L x 1.096 W x 0.854 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 in a vacuum, they are isolated from the marine environment.
Active Control
Seakeeper’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.
Intuitive 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.
| Technical Specifications | |
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Max Rated Speed |
6,150 RPM |
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Angular Momentum at Max Rated RPM |
18,000 N-M-S |
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Spool-up Time to Max Rated RPM |
42 minutes (6,150 RPM) |
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Spool-up Time to Stabilization |
27 minutes (4,613 RPM) |
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Power Consumption |
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Spool-Up Power |
3,700 Watts Max |
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Spool-Up Power Input |
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Operating Power |
1,425 – 3,000 Watts (Sea State Dependent) |
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DC Power Input |
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Control Power |
240 Watts |
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Control Power Input |
24 VDC @ 10 Amps Max |
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Seawater Pump Power Input Over Current Protection based on installed pump rating |
24 VDC @ 10 Amps Max |
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Weight |
2,460 lbs (1,116 kg) |
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Envelope Dimensions |
42.5 L x 43.2 W x 33.6 H (inches) 1.078 L x 1.096 W x 0.854 H (meters) |
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Noise Output |
~68 dB at 1 meter |
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Seawater Supply to Heat Exchanger |
4 GPM (15.1 LPM) minimum 8 GPM (30.3 LPM) maximum |
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Ambient Air Temperature |
32° – 140° F (0° – 60° C) |
Seakeeper Warranty
To ensure peace of mind, all Seakeeper products come with a multi-year factory warranty