Stability & Comfort

Quiet & precise stabilization, WESMAR stabilizers change the way comfort is measured on the water.

Fin Stabilizer Systems

DSP5000 Wave-Smart Stabilizer

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Quiet and precise stabilization

Roll Fin Stabilizers

A Stabilizer System Customized for your Vessel and How and Where you Cruise!

It is important to understand that there are many factors that go in to selecting the optimal stabilizer system. Vessel characteristics, such as LOA, weight, displacement, windage, roll period, and metacentric height are all critical factors in selecting the best stabilizer system. How and where you cruise are also important factors in your choice of a stabilizer system.

WESMAR's DSP5000 Wave-Smart uses predictive technology together with actual vessel motion to enhance the stabilization of the vessel. It brings faster response, smoother stops, and replaces chasing and wasted energy while minimizing noise.

The DSP5000 uses an integrated processor that combines the key elements of interfacing fin position, velocity, and acceleration with the characteristics of the vessel. Add WESMAR's legendary rugged and reliable, neutrally buoyant hydrodynamic fins, and a whole new level of comfort and control is realized. This new stabilization method delivers maximum comfort, a smooth ride, and quiet operation backed by over 50 years of WESMAR's maritime pedigree.

The DSP5000 control is simple and intuitive with seamless interfaces to today's advanced technologies, such as GPS, CANBUS, alarm suites, and more. The activation of the system is achieved by one touch of a button and is available on-demand with no warm up time.

Combination Display/Controller with simple and intuitive User Interface

Combination Display/Controller with simple and intuitive user unterface

WESMAR Stabilizer Features

  • Programmable and expandable display / controller with an easy-to-use settings menu
  • Real time graphic display of fin reaction to roll that can be monitored by the user
  • Ability to add vessel specific custom display screens
  • WESMAR's Wave-Smart® control system provides rapid response and control of the hydraulic system resulting in quiet and smooth positioning of the stabilizer fins.
  • All system operation data can be downloaded to a flash drive via the onboard USB port if required for system troubleshooting.
  • Advanced display with simple and intuitive user interface
  • Two modes for beam and following seas
  • NMEA 2000 interface to vessel GPS systems automatically adjusts to boat speed and position.
  • CANBUS compatible
  • Advanced internal electronic gyro provides control feedback for roll and horizon working in conjunction to keep the vessel level in a wide range of conditions
  • System remains stable in turns and remains stable as vessel accelerates or decelerates
  • Rugged, triple layer fin construction features strong and lightweight structural foam that makes the fin neutrally buoyant
  • Available with single or dual actuators depending on fin size and system configuration
  • Can increase fuel efficiency and reduce time in route (ETE)

Electronic Gyro Upgrades

  • A unique WESMAR Retrofit Package allows boats yards and boat owners to upgrade older stabilizer systems to the state of the art electronic gyroscope and controls of the DSP5000.
  • The Stabilizer upgrade does not require replacing existing actuators and fins; therefore, an expensive haul-out is not required.
  • The WESMAR DSP5000 upgrade works on all models of WESMAR Roll Fin Stabilizers AND those of most other fin stabilizer manufacturers.
  • A DSP5000 upgrade can typically be done in less than a day.

Fin Stabilization versus Inertial Gyro Stabilization?

There are two types of stabilization systems commonly in use today: fin stabilization and inertial gyro stabilization. Both have advantages and shortcomings.

Fin stabilization is most effective for stabilization "at speed," typically costs less, adds little weight to a vessel, takes up minimal real estate, has low power consumption, is quiet, and can be activated instantly with a touch of a button. Fin stabilization systems are not as effective for "at anchor" stabilization.

Inertial Gyro stabilization is new and novel and does a good job "at anchor" for boaters who often anchor in rough seas; however, they are not as effective for "at speed" stabilization. They have a large footprint, consume more power, require a long-warm-up and shut down cycle, and are typically more expensive to purchase, install, and maintain.


WESMAR offers a wide range of fin stabilizer systems, which are most effective for stabilization "at speed" for vessels ranging from 30 feet to 200 feet with fin sizes from 2 ½ square feet to 33 square feet (see product matrix). Our applications engineers and our network of authorized factory trained and certified service facilities are available to assist in selecting the most effective stabilization system for your vessel.

Fin Stabilizer Systems
Model Fin Size Fin Shaft Diameter Actuators Cylinders Per Fin
FS175-2.5 2.5 sq ft 1.75 in 1
FS175-3.5 3.5 sq ft 1.75 in 1
FS250-4.5 4.5 sq ft 2.5 in 1
FS350-4.5 4.5 sq ft 3.5 in 2
FS250-6.0 6 sq ft 2.5 in 1
FS350-6.0 6 sq ft 3.5 in 2
FS250-7.5 7.5 sq ft 2.5 in 1
FS350-7.5 7.5 sq ft 3.5 in 2
FS250-9.0 9 sq ft 2.5 in 1
FS350-9.0 9 sq ft 3.5 in 2
FS350-12.0 12 sq ft 3.5 in 2
FS350-16.0 16 sq ft 3.5 in 2
FS550-16.0 16 sq ft 5.5 in 2
FS550-22.0 22 sq ft 5.5 in 2
FS550-30.0 30 sq ft 5.5 in 2
Let us help you configure & price your Stabilizer system   Configure My Vessel

"It’s very smooth. No roll at all. I highly recommend this upgrade to any vessel."— Michael Sedrick,
Captain of the 92-foot M/Y Endless Summer
"My biggest joy was taking a tanker wake exactly broadside (cross-wake). With the WESMAR’s on, it felt like flat water."— Steve Hinchcliff

Fin Stabilizer Systems Stories
Feb 10, 2021
WESMAR Stabilizers Significantly Reduce Crew and Guest Fatigue
Probably the most dependable piece of equipment we have added to the boat. read full story
Aug 29, 2017
We hit 15 ft seas, and the WESMAR Stabilizers smoothed the roll to almost nothing
Paul Reyff, Captain of the 94-ft Motoryacht BELLISSIMA talks about his WESMAR stabilizers read full story

Read all news & media stories
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