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.
~ 45' - 54'
~ 55' - 64'
~ 65' - 74'
~ 75' +
| Weight | 3,920 lbs (1,778 kg) |
| Dimensions | 52.8 L x 55.9 W x 42.4 H (inches) |
| 1.342 L x 1.419 W x 1.076 H (meters) |
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.
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.
| Max Rated Speed | 4,400 RPM |
| Angular Momentum at Max Rated RPM | 30,000 N-M-S |
| Anti-Rolling Torque at Max Rated RPM | 62,571 N-M |
| Spool-up Time to Max Rated RPM | 65 minutes (4,400 RPM) |
| Spool-up Time to Stabilization | 50 minutes (3,740 RPM) |
| Spool-up Power | |
| Spool-Up Power | 5000 Watts Max |
| Operating Power | 2000 - 5000 Watts (Sea State Dependent) |
| AC Power Input | 220 VAC, 50/60 Hz, Single Phase |
| Control Power | 240 Watts |
| Control Power Input | 24 VDC @ 10 Amps |
| Seawater Pump Power Input Over Current Protection based on installed pump rating |
220 VAC @ 5 Amps Max |
| Weight | 3,920 lbs (1,778 kg) |
| Envelope Dimensions | 52.8 L x 55.9 W x 42.4 H (inches) 1.342 L x 1.419 W x 1.076 H (meters) |
| Noise Output | 72-74 dBC at 1 meter |
To ensure peace of mind, all Seakeeper products come
with a multi-year factory warranty
