Seakeeper 7HD
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.
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.
~ 35' -44'
~ 45' - 54'
~ 55' - 64'
~ 65' - 74'
~ 75' +
| Weight | 1,210 lbs (550 kg) |
| Dimensions | 33.5 L x 35.6 W x 28.3 H (inches) |
| 0.852 L x 0.903 W x 0.720 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.
| Rated Speed | 7,000 RPM |
| Angular Momentum at Rated RPM | 7,000 N-M-S |
| Anti-Rolling Torque at Rated RPM | 14,630 N-M |
| Spool-up Time to Rated RPM | 35 minutes (7,000 RPM) |
| Spool-up Time to Stabilization | 25 minutes (5,600 RPM) |
| Spool-up Power | |
| AC Motor | 3000 Watts Max |
| DC Control | 240 Watts |
| Operating Power | |
| AC Motor (sea state dependent) | 1000 - 2000 Watts |
| DC Control | 240 Watts |
| AC Input Voltage | 208 - 230 VAC (+/- 10%), 50/60 Hz, Single Phase |
| DC Input Voltage | 24 VDC @ 10 Amps |
| Weight | 1,210 lbs (550 kg) |
| Envelope Dimensions | 33.5 L x 35.6 W x 28.3 H (inches) 0.852 L x 0.903 W x 0.720 H (meters) |
| Noise Output | 68-70 dBC at 1 meter |
To ensure peace of mind, all Seakeeper products come
with a multi-year factory warranty
