Seakeeper 26

Seakeeper 26


Designed to eliminate up to 95% of boat roll, the Seakeeper 26 is sized for vessels ~70' - 84’, up to ~75 tons. Unlike traditional external fins, the Seakeeper 26 has no outside appendages, requires only modest electrical power, and can be installed virtually anywhere on board.

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

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.


Rated Speed5,000 RPM

Angular Momentum at Rated RPM26,000 N-M-S

Anti-Rolling Torque at Rated RPM56,000 N-M

Spool-up Time to Rated RPM90 minutes (5,000 RPM)

Spool-up Time to Stabilization70 minutes (4,250 RPM)

Spool-up Power

AC Motor3000 Watts Max

DC Control240 Watts

Operating Power

AC Motor (sea state dependent)1000 - 3000 Watts

DC Control240 Watts

AC Input Voltage208 - 230 VAC (+/- 10%), 50/60 Hz, Single Phase

DC Input Voltage24 VDC @ 10 Amps

Weight2,960 lbs (1,342 kg)

Envelope Dimensions52.7 L x 55.9 W x 40.4 H (inches) 
1.34 L x 1.42 W x 1.03 H (meters)

Noise Output72-74 dBC at 1 meter

Sea Water Supply to Heat Exchanger30 LPM (8 GPM) maximum
15 LPM (4 GPM) minimum

Ambient Air Temperature0° - 60° C (32° - 140° F)


Add To Cart