Actual Ultim 4: The Technology Behind the High-Speed Trimaran

TVS News AI, editorially supervised, presents Actual Ultim 4: The Technology Behind the High-Speed Trimaran.

A steering knob, a mini PC and a Starlink satellite system: aboard Actual Ultim 4, the controls initially look like a mixture of PlayStation and workshop. The key, however, lies in the details. Frandroid's author spent two days in Lorient with Team Actual and was able to see not only the boat from the outside, but also look inside its various working areas.

The visit took place one month before the start of the Route du Rhum. Actual Ultim 4 is one of eight maxi-trimaran boats set to compete in this race. These boats can reach speeds of more than 90 km/h during the race. Technical equipment therefore forms just as much a part of the sporting program as sailing technology does: when the boat itself is not directly in the foreground, performance is often decided in places you never see when photographing a sailor.

As someone interested in technology and mobility, you get an unusual perspective on the connection between sailing, electronics and digital infrastructure. Aboard Actual Ultim 4, the point is not to admire any single device. What matters is that several systems have to work together in a highly dynamic environment.

What's Inside Actual Ultim 4?

Four LiDAR sensors are just as much a part of the technical inventory as 350 meters of optical fiber. There is also a Starlink system and a consumer-grade mini PC. The source also mentions a PlayStation-like steering experience, an indication that the skipper breaks maneuvers down into individual steps, and the division of labor between the keel, the design office and the boat.

It is precisely this mixture that makes the trimaran interesting. The physical work involved in a racing boat is one thing. The digital and electronic infrastructure is another. In Lorient, you get a sense of how the two belong together: the skipper's controls go far beyond individual commands. In the background, a computer, fiber-optic cables and sensors supplement the technical equipment.

The figure of 350 meters of fiber optic cable illustrates just how extensive the wiring in a boat like this can be. For Actual Ultim 4, the connection is therefore not symbolic: it is part of the infrastructure extending throughout the boat. The mini PC, meanwhile, shows that ordinary commercial hardware can also play a role in high-performance projects.

The controls

Particularly striking is the reminder located directly beneath the skipper's eyes. It serves as a reminder to break maneuvers down into individual steps. That sounds simple, but it fits the overall picture: the boat is fast enough for every steering input and every movement to matter within a short window of time.

The comparison with a PlayStation controller is more than a technical description. It makes it tangible that the skipper's controls consist of more than traditional sailing techniques. Although the sources do not name any specific game elements or steering commands, the image of a racing controller fits the steering requirements for this sailor: precise, immediate and to the point.

Starlink also brings an internet connection aboard. On a maxi-trimaran, that is more than a convenience feature, because the team has to work with different data during training and racing phases and manage various communication processes. The source does not reveal which services are used in concrete terms. What is certain is that, alongside the boat's traditional equipment, Starlink forms another component of the technical setup.

Two Days in Lorient: More Than a Tour

The visit was scheduled for two days and took in several areas of the team. Alongside the tour on board, the focus was on the keel and the technical development office. Actual Ultim 4 was therefore presented not only as a pure racing machine, but also as a working project in which design, steering and electronics have to fit together.

The keel

The keel reveals the lower section of the boat. On a maxi-trimaran, this is where the hydrodynamic design and weight distribution take practical effect. Although the source does not describe any individual technical measurements, Actual Ultim 4 is presented as a boat whose speed depends on a range of coordinated systems. With four LiDAR sensors, optical fiber and digital controls, the technology is already present in the boat's foundation.

The development work

The technical office focuses on the connection between what works at sea and what was previously planned and improved. The visit thus shows a working day that differs sharply from an ordinary outing on a sailboat. For Actual Ultim 4, the focus is on the start of the Route du Rhum, a race involving eight maxi-trimaran boats.

The design documents, electronic equipment and controls are not considered in isolation. It is precisely this combination that makes the trimaran technically fascinating: the top speed of more than 90 km/h is not just a figure, but also a benchmark for the requirements placed on every individual system.

What Does This Mean for You?

The real appeal of Actual Ultim 4 lies not in a single record-breaking figure. It lies in the question of how a team brings all the small elements together so that a sailor has the right information at the decisive moment and can trigger the appropriate movement. LiDAR, fiber optic cable, mini PC, Starlink and the controls are therefore more than a list of cool components.

For technology enthusiasts, the combination of sport and highly sophisticated infrastructure is fairly fascinating. For anyone interested in mobility or digital equipment, the visit to Lorient primarily provides an unusual perspective: intelligent controls do not work through their entertainment function alone. They require sensors, networks, computers, cables and people who coordinate the processes.

An honest assessment

The sources provide no independent speed measurement, no complete explanation of every sensor and no list of all software functions. It would therefore be going too far to infer specific technical advantages from the components mentioned when they are not documented anywhere. The equipment, scope of the visit, eight reported maxi-trimaran boats and potential speed of more than 90 km/h are all firmly documented.

It is precisely this combination that makes the view aboard so compelling. You do not get a dry look at a display model, but a small insight into a racing team that is still working on the details one month before the start.

Conclusion: Technology That Becomes Invisible During the Race

p>Actual Ultim 4 shows how far development on a modern maxi-trimaran has progressed. Four LiDAR sensors, 350 meters of fiber optic cable, Starlink, a mini PC and a prominently positioned control with a reminder for the skipper: all of these elements form part of the picture of a racing boat capable of reaching over 90 km/h at the top level.

The most important insight from Lorient, therefore, is not that one electronic device is particularly fast or particularly important. What matters is coordination. That is precisely where Team Actual's work begins—and exactly why it is worth looking beneath the surface of a high-performance boat.

Your Added Value: More Insight Into This Story

If you would like to read the detailed Frandroid visit with the images and further details, you can find it here: Actual Ultim 4 and its technology at Frandroid.

Enjoy reading—and if you find team technology or maritime mobility exciting yourself, stay tuned for the upcoming details.