Ipsum—this 13.7-meter trimaran completely defies conventional market logic. Behind its sweeping hull lines lies a fundamental architectural design that defines not only the construction process but also the very philosophy of its operation at sea.
With the Ipsum 45 project, AWA (Apparent Wind Activities) decided to do more than simply add another production model to the high-speed multihull segment. What we have here is a unique seaworthy vessel based on the "open boat" principle: a flexible, evolving system whose configuration isn't fixed in a mold the moment the yacht is launched.
Trimaran as a base for experiments
The Ipsum 45 project is based on the so-called Core Kit—a strictly defined set of critical power components. All hulls, supporting structures, and key technical compartments are designed and manufactured to the strict standards of ocean-going racing boats.
But everything else about this boat defies strict description. The owner decides for himself what to build it from and how to arrange the interior space. This approach is fundamentally different from mass-produced trimarans, which come from the shipyard in a fixed, turnkey configuration.
For a yachtsman, this means total immersion in the process from the very beginning. For them, a boat becomes more than just a purchase, but a full-fledged personal creative project.
Free approach to construction
This approach to design isn't just a matter of aesthetics or layout. It directly impacts the vessel's performance at sea.
Depending on whether the owner chooses ultra-light carbon fiber or wood-epoxy resin, the displacement, inertia, and hull loading characteristics will differ dramatically. As a result, two seemingly identical Ipsum 45s can exhibit completely different performance characteristics when sailing close-hauled or downwind.
This versatility is a real boon for experienced yachtsmen who can customize the boat to suit their specific needs. On the other hand, it can be confusing for those accustomed to clear standards and looking for a predictable, production-ready platform. For such clients, AWA offers a basic package for the "standard" version.
Custom sailing equipment
The same principle of flexibility is implemented in the sailing rig. The choice between an automated rigid wing (editor's note: rigid wings, a type of wingsail) and a classic rig is not just a matter of equipment, but a determination of the sailing style itself.
Installing a wing fundamentally changes the way you fly the Ipsum 45. Instead of the familiar soft sail, you transition to the rigid aerofoil approach. This provides a huge boost in airflow stability, but it also imposes its own specific operational requirements.
Classic sails, on the other hand, provide a more familiar and direct connection with the boat: you literally feel all the loads and balance of the Ipsum 45. This option is more intuitive in extreme conditions and much easier to repair during port stops.
This dual approach perfectly captures the essence of the Ipsum 45 project: the skipper himself determines his own balance between extreme efficiency and technological complexity.
Modular layouts
The trimaran's interior design follows the same philosophy. Even the connecting beams (outriggers) are not simply structural elements, but useful volumes that can be filled with a wide variety of modules.
Whether it's loft-style cabins, gear storage, or specialized work areas, every configuration can be tailored to specific needs. This allows the Ipsum 45 to easily transition from a sport cruiser to a dedicated expedition platform.
This approach completely changes the familiar way of life on board. Volumes are distributed differently than on production yachts: here, more areas are open to the outside world, creating a feeling of unlimited space.
A concept for those in the know
Such a radical approach is unlikely to ease the entry into the world of multihulls for beginners. On the contrary, the Ipsum 45 is designed for experienced sailors who want complete control over their "instrument," understanding its design down to the smallest details.
The connection with the world of professional ocean racing can be seen everywhere: in the logic of the sailing system, where there are no trivial details, and in the very idea of the Ipsum 45, which is built around a specific, precisely calibrated program.
Ultimately, the Ipsum 45 isn't trying to cater to existing demand. It offers a technological framework within which each owner is free to create their own unique trimaran—with all its advantages and nuances that will truly shine on the high seas.
New video on Interparus channel
Finally, a proper catamaran! And this is the FP41, the new catamaran from Fountaine Pajot. We've explored the key features, assessed the cabin comfort, reviewed every detail from stern to bow, and discussed controversial issues. The full review is already on the channel!
24.04.2026
