Seakeeper Ride 750 Quad for Boats 37 - 42 ft

A first-of-its-kind Vessel Attitude Control System (VACS)

Seakeeper Ride 450
Experience exceptional pitch and roll stability on smaller vessels measuring 19 to 26 feet in length with the Seakeeper Ride 450. You can achieve significant results without requiring a large boat.

Seakeeper Ride 525
Boats that fall within the 27-30 feet range can benefit from the Seakeeper Ride 525, which offers precisely calibrated lifting forces. This innovative solution effectively mitigates the negative effects of pitch and roll during navigation, ensuring a comfortable and stable experience. The Seakeeper Ride 525 strikes the perfect balance for boats that are neither too big nor too small.

Seakeeper Ride 600
Don't let pitch and roll affect your enjoyment on the water anymore. The Seakeeper Ride 600 is capable of providing the necessary stability for your 31-35-foot vessel.

Seakeeper Ride 750 and Seakeeper Ride 750 Quad
What's the difference?
• Seakeeper Ride 750: This system has two controllers and will fit most transoms.
• Seakeeper Ride 750 Quad: This system consists of four smaller controllers and is suitable for unique transoms that may have hull design elements that restrict available space.
• Both systems were designed with aluminum components for added strength.

Most 37-42ft boats will be able to fit the two controllers in the Seakeeper Ride 750 system. Seakeeper recommend the Ride 750 system if the transom geometry allows for it (less cost for you, less installation work). If there are obstructions or elements of the hull design that restrict the available space for the use of two larger controllers, the Seakeeper Ride 750 Quad system is an alternative that may make a Seakeeper Ride installation possible.

How Seakeeper Ride controllers work
Seakeeper Ride controllers are mounted to your boat’s transom, below the waterline. Using custom, proprietary inertial sensing hardware and software, the system understands how the boat is behaving in all three axes and commands deployment of the rotary blades to counteract pitch, roll, and yaw. As the blades are deployed, they create lift at the transom, managing the vessel’s motion instantaneously.

Why it’s better
Wave motions can happen consistently or inconsistently, they can be big or small, and can come from any direction. Often, these motions occur in just milliseconds. Thanks to expert control software and hardware, Seakeeper Ride’s proprietary, rapid-deployment rotary blades make 100 adjustments every second to combat wave motions.
Nothing compares to the first-of-its-kind Vessel Attitude Control System, Seakeeper Ride, which can eliminate up to 70% pitch and roll underway.

Eliminate up to 70% pitch and roll underway
Nothing compares to the first-of-its-kind Vessel Attitude Control System, Seakeeper Ride, which can eliminate up to 70% pitch and roll underway. Our proprietary, rapid-deployment rotary blades make 100 adjustments every second to combat wave motions, providing unmatched performance.

Additional Features

Rapid Actuation
Rotary blades deploy at a rate of up to 300 mm per second, making 100 adjustments every second; enabled by power-dense rotary design that requires just 7-10 Amps for operation.

Full Underway Control
Controls all motions (pitch, roll, yaw) thanks to deployment speed and proprietary control software and hardware.

Intuitive
Predicts motion and responds instantaneously to eliminate them before they’re felt with no buttons to push nor adjustments to make, providing a boating experience you never imagined.

Reliable
Drivetrain is completely sealed in a dry and greased environment with no mechanical exposure to saltwater.

Simple Installation
Easily installed on most transoms, both in new and aftermarket boats.

See the Install Manuals under "MANUFACTURERS RESOURCES" on this page for an extensive list of approved two-part high strength adhesives and the tools required.
West Systems Six 10 and Pettit Flexpoxy linked under related products

User Interface
The user interface is compatible with select Garmin, Simrad, and Raymarine MFDs. MFDs are not included in Seakeeper Ride equipment.

Controller components
• Controller One full assembly of all parts below
• Rotary Blade Deploys in and out to build pressure on the seal plate to control vessel motions
• Seal Plate Supports the actuator and the lifting forces created by the controllers
• Rotary Actuator Physically drives the rotary blade in and out of the water
• Actuator Plate The foundation that holds the actuator and seal plate to the transom plate
• Wedge Pack A combination of wedges to angle the seal plate relative to the hull bottom
• Transom Plate Adhered to the transom to support the lifting forces created by the controllers


Boat Compatibility
• Fiberglass or aluminum hull
• Stepped or non-stepped hull 19-35 ft
• Cruising speed greater than 20 mph
• Equipped with a compatible MFD

The kit includes:
• Two Controllers - Port and Starboard, 4 controllers with the 750 Quad.
• Software Module - The "brain" of the system that includes Seakeeper Ride’s proprietary software and motion sensor
• Distribution Module - Provides power and communication between the controllers and the software module
• Cables - a collection of cables for connectivity

Message From Seekeeper regarding Installation...

Seakeeper Ride Partners,

We’re reaching out to inform you of changes to our mechanical installation instructions for Seakeeper Ride aluminum products, which include the Seakeeper Ride 375A, 525A, 750, 750 Quad, 900, 1050, 1125, 1275, and 1500 systems.

We began using an alternative supplier for the coating on the exterior of the Seakeeper Ride aluminum products earlier this year to support the rapid growth in customer demand and to address quality concerns that sometimes occurred on our aluminum products with the previous coating.

Our ongoing testing with the aluminum products indicates that the new coating may not create a sufficient bond with the epoxy adhesives on our approved adhesives list. Therefore, we have updated our instructions to remove epoxies from the approved list of adhesives specifically for Seakeeper Ride aluminum products. Epoxies remain approved and continue to perform exceptionally well with the Seakeeper Ride 450, 525, and 600 systems.

We have updated the adhesives section of the Mechanical Installation Manual on our website to provide instructions for epoxy applications and have reinforced our guidance on when primers need to be used with approved MMAs.

The Seakeeper Ride aluminum products with the new coating can be identified by a yellowish color on the face of the transom plate. If you have installed one of these products since June us