Seakeeper 18

Crafted for 65’-75’ boats, up to 56 tons, the
Seakeeper 18 is designed to eliminate up to
95% of boat roll. The Seakeeper 18 is completely
internal, requires only modest electrical power,
and can be installed virtually anywhere on board.

$119,900 (not including installation)
Seakeeper 18

Ideal for Boats

boat icon

~ 23' - 30'

boat icon

~ 31' - 35'

boat icon

~ 36' - 39'

boat icon

~ 40' - 45'

boat icon

~ 46' - 52'

boat icon

~ 50' - 59'

boat icon

~ 60' - 69'

boat icon

~ 65' - 75'

boat icon

~ 70' - 84'

boat icon

~ 85' +

Seakeeper 18 shown to scale here on a 73' Absolute Navetta.

Stabilization for Any Occasion

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 2,270 (1,030 kg)
Dimensions 42.1 L x 43.1 W x 33.6 H
1.069 L x 1.096 W x 0.854 H
View full spec sheet Seakeeper 18

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.

New 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.

Seakeeper 18

Specifications

Rated Speed 7,000 RPM
Angular Momentum at Rated RPM 18,000 N-M-S
Max Anti-Rolling Torque at Rated RPM 34,980 N-M
Spool-up Time to Rated RPM 50 minutes (7,000 RPM)
Spool-up Time to Stabilization 35 minutes (5,950 RPM)
Spool-up Power
AC Motor 3700 Watts Max
DC Motor 240 Watts
Operating Power
AC Input (sea state dependent) 2300 - 3700 Watts
DC Control 240 Watts (24 VDC)
AC Input Voltage 208 - 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Sea Water Pump Voltage 24 VDC @ Pump Manufacturing Rating
DC Input Voltage 24 VDC @ 10 Amps
Sea Water Supply to Heat Exchanger 30 LPM (8 GPM) Maximum
15 LPM (4 GPM) Minimum
Ambient Air Temperature 0° - 60° C (32° - 140° F)
Weight (Approximate) 2,270 (1,030 kg)
Envelope Dimensions 42.1 L x 43.1 W x 33.6 H (Inches)
1.069 L x 1.096 W x 0.854 H (Meters)
Noise Output 66 - 68 dBC at 1 meter

Seakeeper Warranty

To ensure peace of mind, all Seakeeper products come
with a multi-year factory warranty

View Warranty Details

Follow Seakeeper for Updates

Get on the list to receive updates about new Seakeeper products, exclusive sales and more.

Get on the list to receive updates about
new Seakeeper products, exclusive sales and more.

By subscribing, I am confirming that I agree to receive marketing communications from Seakeeper.

No, thanks.

Distrbutor IconCreated with Sketch. Distrbutor IconCreated with Sketch. Installation Center IconCreated with Sketch. Seakeeper IconCreated with Sketch. Seakeeper IconCreated with Sketch. Service Center IconCreated with Sketch. Service Installation ComboCreated with Sketch. angle-rightarrow-leftarrow-rightboat-23-30boat-27-32boat-27-35boat-31-353Asset 1boat-35-443Asset 1boat-40-45boat-40-49boat-45-52boat-45-54boat-46-52boat-50-59boat-55-64boat-60-69boat-65-74 boat-65-75boat-70-84Asset 1boat-85+ Asset 1@3xCreated with Sketch. Calendar IconIconCreated with Sketch. Combined ShapeclockIconFacebookfacebook earthgoogle-plusicon-checkGroup 3Created with Sketch. Group 3Created with Sketch. icon-elite-dealer-blue-dark icon-elite-dealer-blue icon-elite-dealer Installation-iconCreated with Sketch. Service Center IconCreated with Sketch. Mobile CenterCreated with Sketch. Installation CenterCreated with Sketch. instagram linkedin locationLogo/Logomarkmail map-location-pin-map-marker-glyphCreated with Sketch. EmailCreated with Sketch. IconpersonPhoneCreated with Sketch. Phone IconTriangle-12Created with Sketch. Award IconLogo/SHD WhiteCreated with Sketch. Logo/SHD WhiteCreated with Sketch. Seakeeper LogomarkSmile IconInstallation IcontooltipTwittertwittervimeo youtube
Seakeeper Brochure
View The
Seakeeper Brochure
Recreational
Commercial (HD)