The Original. The Standard.
RotorSwing builds 100% electric yacht stabilizers for motor yachts from 12 to 40 meters.
RS 140 Underway. Holland to Norway and back.
Baglietto 34M Fast. Four RotorSwing rotors, fitted as a refit.
Smelne 1200 AK, fitted as a refit.
RotorSwing designs and builds stabilization systems that reduce the rolling motion of a motor yacht: the sideways movement that makes a good day on the water tiring, and a night at anchor sleepless. We offer two stabilization technologies: Magnus-effect rotors, for displacement and semi-displacement yachts operating at steady cruising speeds, and fully electric fins, for higher speed vessels.
Rotors
Fins
Both come in an Underway version, providing stabilization while cruising, and an Underway + ZeroSpeed version, which continues to stabilize the yacht when at anchor. How electric fin stabilizers work →
Every RotorSwing yacht stabilizer is 100% electric.No hydraulics, no oil,and nothing loud enough to notice.
The Problem
It’s what the weather does to the yacht.
A yacht that rolls turns a crossing into something you endure rather than enjoy. Guests go quiet. Someone goes below and doesn’t come back up. You start checking the forecast three days out, and if it looks marginal, you find a reason to stay put. Another weekend goes by at the dock.
Then there’s the anchorage. You’ve found the bay you were looking for, dinner is on, and a swell wraps around the headland. The yacht starts to move. Glasses slide. Nobody sleeps well.
Most owners accept this as part of life on the water.
It doesn’t have to be.
A spinning cylinder in moving water generates lift: the same physical principle that curves a struck football. RotorSwing rotors spin beneath the hull and turn that force into stabilization, delivering roll reduction from just 3 knots.
RotorSwing’s patented Rotor ZeroSpeed technology stabilizes a yacht at anchor, with no forward motion at all.
The rotors swing beneath the hull and generate their own water flow, producing stabilizing force while the yacht remains stationary. It is the difference between an anchorage you tolerate and one you actually enjoy.
Our patented Rake function automatically adjusts the rotor angle as you pick up speed, holding stability up to 16 knots without retracting the rotors, while minimizing drag to preserve speed and reduce fuel consumption.
No hydraulic power pack, no oil to leak. You hear nothing. No diesel engines. No pumps. Just silence.
Magnus-effect rotors for displacement and semi-displacement yachts. A single rotor, port or starboard, is enough for displacements up to 18 tons. Larger yachts can be equipped with multiple RS 140 rotors, while heavier vessels can step up to the RS 170 for the same stabilizing performance with fewer units. Fully retractable, with no steering effect, and mountable anywhere from midships to 1.5 meters forward of the transom, making refits not only possible, but often far simpler.
Fully electric fins for higher speed vessels, built on over 25 years of experience in marine fin stabilization. Fin blades from 0.7 to 2.0 m², with 360° rotation that also helps prevent anchor-walking. At ZeroSpeed the fins actively move to generate their own water flow.
If the mechanics of your existing system are still sound, you don’t need to replace them. RS Revive brings the controls, sensors and software up to today’s standard, without intensive hull work.
Proof
At anchor
“RotorSwing was a game changer for my Yacht. You cannot realise how important good stabilization is, especially at anchor, until you do not have it switched on. Comfort has increased dramatically, and everyone onboard has noticed that straight away.”
MY iRock: Baglietto 34M Fast, four RotorSwing rotors, fitted as a refit
Under way
Holland to Norway and back. Over 620 hours in open North Sea navigation, on a single installation.
MY VRYBURG: RS 140 Underway
On board
“After I switched the RotorSwing on and off twice, my wife asked me NOT to switch it off again.”
MY Sytske: Smelne 1200 AK, fitted as a refit
Yacht owners:
you want more comfortable days, better nights at anchor, and fewer plans abandoned because of a forecast. Start with the advisor below.
What changes for an ownerShipyards and yacht builders:
full technical support through engineering, installation, commissioning and sea trials.
Working with shipyards and buildersRefit yards:
our rotors mount anywhere from midships to 1.5 meters forward of the transom, which frequently makes an installation possible on a yacht where other systems simply won’t fit.
Refitting an existing yachtNaval architects:
we work alongside your team from the design stage, including stabilization calculations, weight and space analysis, and CAD integration.
Technical support for specifiersWorking on a build or a refit right now? Contact our engineering team directly.
Tell us about the yacht (length, displacement, how and where you use it) and we’ll tell you which system suits it, and just as honestly, which doesn’t.
It takes about two minutes. It’s free.
A RotorSwing engineer reviews every submission personally, then comes back to you with a recommendation.
As the original inventors who brought the Magnus effect to the yachting world, we’ve spent our time since perfecting one thing: yacht stabilization that works quietly enough to be forgotten.
Everything is done under one roof in Nuth, the Netherlands: design, production, and testing. When a system leaves our factory, we’ve already run it ourselves.
Our greatest pride is that we build technology people barely notice. When guests forget the ship is moving and simply enjoy their time on board, our system has done its job.
