Why is the sail concept of the V-REX so extraordinarily innovative and has so many advantages, even over high-tech racers like the current Americas Cuppers?

It is undisputed that the current AC 75s are technologically outstanding and can reach speeds like no other sailing boat. It feels like David versus Goliath when the V-REX concept is pitted against the Americas Cupper.

However, if you look at the arguments and the "proof of concept" that has already been achieved with a built prototype, you quickly recognize the ingenious innovation behind this project.

Here are just a few points that the V-REX has implemented in comparison to the Americas Cupper:

1. The aerodynamic design of the V-REX is unmistakable, with its stabilization wings that can easily control the roll moment at high speeds. Particularly effective at high wind speeds for controlled and stable maneuvers.
2. The windward lean causes the loads on the hydrofoil to decrease! Almost the entire weight of the boat, including the crew, is shifted to the sail load. This is probably one of the most decisive advantages! While the AC has to carry two to three times its own weight due to the leverage forces of the hydrofoil, the load on the hydrofoil decreases with the V-REX! This results in much lower water resistance and therefore higher speeds.
3. The load distribution on the hydrofoils of the V-REX is evenly distributed between the centerboard and rudder foils. This in turn ensures a lower angle of attack of the hydrofoils, less water resistance and therefore the much later onset of cavitation - ergo more speed potential.
4. An aerodynamic lateral plan on the V-REX also ensures less water resistance. The rising surface (leeward side) is provided with lift by the flap position and further reduces the water resistance on the hydrofoils.
5. The V-REX comes onto the foils even at absolutely low boat speeds (approx. 8 ktn). Why? Because it provides additional aerodynamic lift.
6. Since the aerodynamic stabilization wings can also generate downforce upwind and lift downwind, the V-REX can generate more sail pressure with this function, which hardly affects the hydrofoils and thus generates additional propulsion.
7. The V-REX also has water ballast tanks at the ends of the stabilization wings. These can generate an enormous righting momentum due to the leverage forces, which allows additional sail pressure and therefore more speed.

The V-REX has even more advantages, and considering that this concept was developed back in 2013, when ACs were still sailing on catamarans in San Francisco Bay, this is even more remarkable. The functionality has been confirmed by a prototype. This was developed with the support of the FFG (Austrian Research Promotion Agency) and own funds.

Our motto "RETHINKING THE ELEMENTS" has resulted in a completely new, efficient and extremely high-performance sailing concept.