Seakeeper 5
Seakeeper 5 Logo

Small, but powerful. We pushed performance engineering to all new levels to create a small, efficient gyro. The Seakeeper 5 is designed to eliminate up to 95% of boat roll on ~40’ – 45’ boats, up to ~20 tons.

Technical specifications

Max Rated Speed 8,100 RPM
Angular Momentum at Max Rated RPM 5,000 N-M-S
Anti-Rolling Torque at Max Rated RPM 13,075 N-M
Spool-up Time to Max Rated RPM 27 minutes (8,100 RPM)
Spool-up Time to Stabilization 20 minutes (6,885 RPM)
Power Consumption
Spool-Up Power 2300 Watts Max
Operating Power 1050 – 2300 Watts (Sea State Dependent)
AC Power Input 110 or 220 VAC, 50/60 Hz
Control Power 125 Watts
Control Power Input 12 VDC @ 10 Amps
Seawater Pump Power Input Over Current Protection based on installed pump rating 12 VDC @ 15 Amps Max
Weight 870 lbs (395 kg)
Envelope Dimensions 29.8 L x 29.7 W x 24.7 H (inches) 0.756 L x 0.755 W x 0.626 H (meters)
Noise Output At full operating RPM, steady state noise measured in the factory at a 1 meter distance measures 70 – 75 dBC. (Sound levels may be higher during spool-up)
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)


Frequently asked questions

It is a computer controlled gyroscope that eliminates most boat roll, including the fatigue, anxiety and seasickness that goes with it. Because of this game changing effect, PR Nautica have successfuly installed over 30 Seakeeper units worldwide.
Typically, the Seakeeper weighs between 2 and 4% of boat weight, requires half or less the power of air conditioning, and fits in available space down in the after part of the hull. Nothing extends outside the hull and the Seakeeper is a small percentage of the overall volume of the boat.
Seakeepers are sutiable for most boats 30 feet and above. PR Nautica can install the best option on new vessels and as a retro project. Up to 20 tons, vessels 30-50′: Seakeeper 5 Up to 35 tons, vessels 50-65′: Seakeeper 9 Up to 70 tons, vessels 65-80′ : Seakeeper 16 Up to 100 tons, vessels 80-100′: Seakeeper 26 Greater than 100 tons, vessels >100′: Seakeeper 35

Yes, we can fit Seakeepers to both new vessels and aftermarket. The time of a retrofit installtion will vary depending on the Seakeeper and the model of the vessel. Typical installation time is 1-3 weeks. Get in touch for a custom quotation.

Seakeeper projects

As an official Seakeeper Partner we have conducted over 30 exciting Seakeeper projects world wide.

Seakeeper UK Service Center, Installation Center, and Mobile Service Center.

Get in touch to learn more about how Seakeeper can eliminate boat roll, including the fatigue, anxiety and seasickness that goes with it.