Seakeeper 3

They say great things come in small packages and we set out to prove it. The Seakeeper 3 is our biggest smallest thing yet, specially designed to eliminate roll on ~35-41 foot boats. Refits have never been easier than with the Seakeeper 3’s leaning post installation option!

MSRP $39,300

INSTALL $19,250 *

*This is the average installation cost for this Seakeeper unit. This does not include taxes, yard time or special modifications. This is only an estimate.

Ideal for Boats

Seakeeper 2 shown to scale here on a Scout 32 LXF.

Stabilization for Small Boats

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

Weight	550 lbs (249 kg)
Dimensions	26.8 L x 27.0 W x 23.1 H (inches)
	0.680 L x 0.688 W x 0.587 H (meters)

View full spec sheet

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.

Max Rated Speed	9,000 RPM
Angular Momentum at Max Rated RPM	2,000 N-M-S
Max Anti-Rolling Torque at Max Rated RPM	5,249 N-M
Spool-up Time to Max Rated RPM	35 minutes (9,000 RPM)
Spool-up Time to Stabilization	19 minutes (6,750 RPM)
Power Consumption
Spool-Up Power	850 Watts Max @ 12 VDC
Spool-Up Power Input	75 Amps Max
Operating Power	278-850 Watts (Sea State Dependent)
DC Power Input	12 VDC @ 25-75 Amps
Control Power	125 Watts
Control Power Input	12 VDC @ 15 Amps Max
Seawater Pump Power Input Over Current Protection based on installed pump rating	12 VDC @ 15 Amps Max
Weight	414 lbs (188 kg)
Envelope Dimensions	25.5 L x 24.6 W x 20.4 H (inches) 0.648 L x 0.625 W x 0.518 H (meters)
Noise Output	<68 dBC at 1 meter
Seawater Supply to Heat Exchanger	2 GPM (7.6 LPM) minimum 6 GPM (22.7 LPM) maximum
Ambient Air Temperature	32° – 140° F (0° – 60° C)