Seakeeper 2

We’ve done it again. We took the groundbreaking
Seakeeper 3 and made it even smaller. 25% lighter
and 20% smaller to be exact. Specially designed for
boats approximately 27-32 feet, the Seakeeper 2
eliminates up to 95% of boat roll. Now even more
people will be able to enjoy their time out on the water.

$22,700

(not including installation)

Buy Now

Ideal for Boats

~ 27' - 32'

~ 33' - 39'

~ 40' - 49'

~ 50' - 59'

~ 60' - 69'

~ 70' - 84'

~ 85' +

Size does matter

Which Seakeeper is right for your boat?

This guide will help select the model that will offer optimal performance for 27 - 49' cruisers and center consoles. We aim to eliminate up to 95% of boat roll, and that starts with choosing the appropriate Seakeeper for your boat. For product recommendations on sportfish, commercial, or larger vessels, please Contact Us for a custom performance prediction. Check out our sea trial library to view performance results on similar boat types!

Select Boat Type

Center Console

Cruiser

Don't see your boat type? Contact Seakeeper for a customized sizing.

Select Boat Length

27 Feet

28 Feet

29 Feet

30 Feet

31 Feet

32 Feet

33 Feet

34 Feet

35 Feet

36 Feet

37 Feet

38 Feet

39 Feet

40 Feet

41 Feet

42 Feet

43 Feet

44 Feet

45 Feet

46 Feet

47 Feet

48 Feet

49 Feet

Please round up to the nearest whole foot.

Select Beam Length

8 Feet

9 Feet

10 Feet

11 Feet

12 Feet

13 Feet

14 Feet

Please round up to the nearest whole foot.

Seakeeper 2

$22,700(not including installation)

For Boats ~ 27' - 32' Weight: 414 lbs (188 kg) Learn More

Seakeeper 3

$27,700(not including installation)

For Boats ~ 33' - 39' Weight: 550 lbs (249 kg) Learn More

Seakeeper 6

$42,200(not including installation)

For Boats ~ 40' - 49' Weight: 870 lbs (395 kg) Learn More

Seakeeper 9

$73,100(not including installation)

For Boats ~ 50' - 59' Weight: 1,210 lbs (550 kg) Learn More

Seakeeper 16

$99,400(not including installation)

For Boats ~ 60' - 69' Weight: 2,195 lbs (996 kg) Learn More

Seakeeper 26

$161,800(not including installation)

For Boats ~ 70' - 84' Weight: 2,960 lbs (1342 kg) Learn More

Seakeeper 35

$216,300(not including installation)

For Boats ~ 85' + Weight: 3,920 lbs (1,778 kg) Learn More

The Seakeeper can be installed anywhere in the boat from amidships aft, as long as access is provided for routine maintenance. Our Seakeeper Dealer network can help determine the best location and installation plan for each individual boat.

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	414 lbs (188 kg)
Dimensions	24.8 x 25.5 x 20.0 (inches)
	0.630 x 0.648 x 0.508 (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 for life in a vacuum, they are forever isolated from the marine environment.

Active Control

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.

Rated Speed	9,000 RPM
Angular Momentum at Rated RPM	2,000 N-M-S
Max Anti-Rolling Torque at Rated RPM	5,249 N-M
Spool-up Time to Rated RPM	35 minutes (9,000 RPM)
Spool-up Time to Stabilization	24 minutes (7,650 RPM)
Spool-up Power
AC Input	N/A
DC Input	850 Watts Max
Operating Power
AC Input (sea state dependent)	N/A
DC Input	300 - 650 Watts (Sea State Dependent)
AC Input Voltage (Single Phase)	N/A
DC Input Voltage	12 VDC @ 75 Amps
Weight	414 lbs (188 kg)
Envelope Dimensions	24.8 L x 25.5 W x 20.0 H (inches) 0.630 L x 0.648 W x 0.508 H (meters)
Noise Output	<68 dBC at 1 meter

Seakeeper 2