Carbon Infusion Technique at Sven Akermann Werft’s

Karel Overlaet, RIB Advocate

The Infusion Technique is Widely Used

I got in contact with Sven Akermann about the infusion technique and provided the photos above.

The carbon infusion technique, especially vacuum infusion, is used to create strong and lightweight composite parts.

Dry carbon-fiber mats are placed in a mold and liquid resin is drawn in under vacuum pressure. That’s actually how the infusion technique works.

This process ensures dense impregnation and minimizes air bubbles.

The resin spreads evenly, producing high-quality, lightweight parts with an excellent fiber-to-resin ratio.

Here’s another application of infusion technique using fiber glass: Exclusive: The Making of GEMINI WR880 Hull in 12 Steps.

About Sven Akermann

Sven Akermann, boatbuilder, yacht designer and constructor, began designing and building special carbon boats in 2007.
Under the YSA label, fast racing sailboats and catamarans were developed.
The label grew with several investors into the SAY Yard until the company was sold at the end of 2015.

In 2020, a fresh start followed with an enthusiastic partner and team in Hergensweiler near Lindau, Germany.
Sven Akermann presents a broad portfolio of highly efficient tenders with the c-Ultra boat series. The series ranges from 22 to 55 feet.
The design language is minimalist and exclusive, and customer wishes are gladly accommodated.

All tenders in the c-Ultra series are RIBs.
The fender surround removes concerns about contact and eases docking and undocking.
High-quality Hypaluron fenders provide extra protection on the water, as a system of air chambers makes the boat almost unsinkable.

Ribeye PRIME NINE41 – Walkthrough Custom Built

Karel Overlaet, RIB Advocate

A Luxurious Ribeye Prime

This exceptional 2024 Ribeye PRIME NINE41 showcases outstanding performance and represents one of the finest models ever produced.

Its proven deep-V hull and twin 350 hp Yamaha engines deliver immense power, with fewer than 50 engine hours.

The interior features premium upgrades, including shock-absorbing helm seats, dual 16″ Garmin displays, Fusion audio, and synthetic teak decking.

You also get a bow sun-bed, aft U-berth seating, underwater lights, a fresh-water shower, wireless charging, and additional enhancements.

Whether you want a fast day boat, a luxury superyacht tender, or a versatile family cruiser, this PRIME NINE41 excels.

This video was published on the Ribeye Boats YouTube channel.

It’s been a while but ib the past I’ve uploaded more Ribeye Rigid Inflatable Boats: Here they are!

Specs

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Stepped Hull Explained: Efficiency, Comfort & Top Speed

Karel Overlaet, RIB Advocate

Tech-talk by Goldfish: What’s a Stepped Hull

A stepped hull is a specialized hull design engineered to reduce drag, increase speed, and improve ride quality.

In this video, the team at Goldfish explains how stepped hulls work. They discuss why this technology plays a central role in the way they build their boats.

A stepped hull uses raised panels that draw in air to reduce friction and create a lubricating air-cushion effect.

This design improves efficiency by letting water detach and reattach smoothly as the boat moves across each panel.

A low angle of attack lets the hull pierce water cleanly and dissipate forces before they reach passengers.

The boat skims across waves at shallower angles, improving comfort, stability, and speed even in changing sea conditions.

Continuous in-house testing ensures each hull is uniquely engineered for its intended performance. It highlights the need for skilled high-speed operation.

This video was published on the Goldfish Boat AS YouTube channel.

Got more videos of these Norwegian RIBs: Here they are.

Nautica Gaglione Gaillot 92.5: Test at Sea!

Karel Overlaet, RIB Advocate

Gaillot 92.5 By The Sea Team

The Nautica Gaglione 92.5 was tested with twin 200-horsepower Mercury V6 engines. Sea conditions combined short and long waves, creating a demanding environment.

The hull behaved softly, and the deck stayed consistently dry. At economical cruising speed, the boat held 24 knots with low fuel consumption.

Synchronized engines provided balanced thrust and smooth handling. Trim adjustments helped keep the bow level during acceleration.

High-speed trials reached nearly 50 knots despite rough water. Structural noise stayed minimal even during tight turns.

Test Data

Model: Nautica Gaglione Gaillot 92.5
RPMSpeed (knots)Consumption (l/h total)
6002.84.5
11505.49.6
16006.814.5
20008.4821.9
33001724
325024.235
38503049
44003556
480039.570
570047117
580049.5134
(source, data may vary)

This video was published on The Sea Team YouTube channel.

Here’s another video I could post so far.

I added this brand to the list of RIBs presented on RIBsONLY.com: it’s number 279! By the way, you can find all the brands on this page I created for you: overview.

Specs

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Boot Düsseldorf is Almost Here

Karel Overlaet, RIB Advocate
2026 Boot @ RIBs ONLY - Home of the Rigid Inflatable Boat

Boot Düsseldorf, Here I Come

I try to visit Boot every year. A great place to meet people as well.

With nearly 214,000 visitors from 120 countries, Boot Düsseldorf is the largest water sports fair in the world.

Every year, enthusiasts, industry leaders, and innovators gather to explore cutting-edge watercraft and the latest marine technologies.

The fair offers an unmatched experience. It combines hands-on demonstrations and expert talks. Additionally, there are opportunities to connect with the global water sports community.

Some Impressions of Earlier Versions

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