Exploring Rossinavi’s 50m Bel¹
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Another custom build from Rossinavi, the all-aluminium Bel¹ features a curvy exterior by Fulvio De Simoni’s studio, an elegant interior by Enrico Gobbi’s Team for Design, and hands-on owner input on aspects ranging from the technical to the artistic.
Words: Julia Zaltzman; Photos: Rossinavi
Fitted with two Cat C32 diesel engines, the all-aluminium yacht has a top speed of 18 knots and a cruising speed of 14 knots
It’s no secret that Rossinavi is paving the way for sporty superyachts with sustainable technology; its 43m catamaran Seawolf X was the first to bring energy-saving AI to yachting. Yet the Italian shipyard’s 50m full-custom Bel¹ adds space and weight optimisation to the mix.
The full-aluminium superyacht is 60 tonnes lighter than if it had been built in steel, making its diesel engines 50 per cent more fuel efficient. Thanks to a 500GT interior volume and intelligent layout, space is in abundance, inside and out, while a 2.3m draft allows for shallow-water cruising in even the smallest of bays.
Bel¹ was delivered to her owners in July 2024, after which they embarked on a summer of Mediterranean cruising, largely in Greece and Saint Tropez. Despite two summer seasons under her belt, including a few charters, the yacht’s debut at the 34th Monaco Yacht Show in September 2025 was the first time her intriguing design had been shown to the world.
Rossinavi premiered Bel¹ at Monaco Yacht Show 2025, a year after debuting the 43m Seawolf X powercat
Federico Rossi, Rossinavi’s COO, says: “The premise of this design was for a super-sporty yacht, with beautiful shaft lines and super lightweight. Then we went a step further by incorporating the SUV trend.
“We closely monitor the automotive sector. In the same way that Porsche and Aston Martin have created SUV designs, we’re doing the same with yachts. Now, many of the boats that we have in construction have SUV DNA because owners want sporty vessels.”
PERSONAL CREATION
The owners of Bel¹ were at the forefront of the design process. “They were making decisions on both interior materials and technical requirements right from the first sketch,” says Sofia Rossi, the company’s Marketing and Communications Director.
A focus on personalised detail is evident throughout, most notably in the selection of marbles, for which the owners went to great lengths to ensure they complemented the range of loose furniture.
“They had a lot of knowledge when it came to interior design, particularly madame, and the use of stone,” Federico says. The material’s use is initially evident in marble trims, shelves and an eye- catching, heavily veined dining table in the main saloon, hewn from Patagonian marble.
“The table was a passion project,” adds Sofia, referencing how the owners bought a decommissioned marble cave in which all the commercially viable marble had been exhausted, and set about finding the right stone for their large dining table. The result is a one-of-a-kind work of art that originated from a 700kg block.
The saloon includes a mirror separating the lounge and the dining area, which benefits from sliding doors on each side
Other marbles found onboard include Verda Green and Venetian Green marble tabletops from Italy’s Veneto region, Tuscan white Carrara marble in the en-suite guest cabins, and grey deep-veined marble from Pakistan. It’s complemented by a broad use of stainless steel, bronze, glass and wood that ties together the interior by Enrico Gobbi of Venice-based Team For Design.
Another artistic focal point is the elaborate central staircase in the lobby, which runs from the lower deck to the upper deck. The walls feature a brass-hued honeycomb aluminium with a backlit panel to bring light and interest to the area. The aluminium is produced under high temperature and pressure to create a textured bubble effect.
Artwork is an area of interest for the owners, evidenced by the mix of sculptures and paintings adorning the interior. The selection process was “intense, as madame wanted to meet each artist in person to better understand their artistic expressions”, Sofia says. “Her involvement in that process was considerable.”
The main dining table is made of heavily veined Patagonian marble
Gobbi, who collaborated with designer Carlo Lionetti on the interior, underpinned the onboard artworks with curated Murano glass creations from international artists, as well as natural, textured materials in desaturated brown, dark aluminium and black, with accents of ochre and dark blue to bring depth.
Brushed American walnut and matte-finished Thai wood is paired with soft, stitched Nappa leather (made from the hides of calves, lambs and goats, and prized for its supple feel and durability), which adds a tactile and warm quality to the modern interior. A gradient from darker to lighter tones adds an elegant touch.
MAXIMISING LIGHT
The overall design intention was to maximise the yacht’s expansive open areas, exemplified by two large main-deck openings in Bel¹’s high, imposing hull that invite light into the main saloon and full-beam master suite.
The full-beam master suite is also on the main deck
Yet perhaps the most striking element of the Fulvio De Simoni Yacht Design exterior is the bow – neither raked nor vertical – but featuring a ‘sceptre-like’ tip that evokes the hooked beak of a golden eagle.
Fulvio De Simoni, the studio’s founder, says: “The originality and architectural complexity of this project posed significant challenges, but it also allowed us to express our creativity by inventing new forms without compromising functionality or the enjoyment of life on board.”
Forward view of the upper-deck skylounge, which includes mirrored surfaces and an attractive bar, and leads to a gym
Bel¹ is equipped with four stabiliser fins for increased stability, ensuring comfortable navigation in all sea conditions, particularly on the lower deck, which includes four evenly sized guest cabins: three doubles and a twin with sliding beds.
“It’s a very democratic layout as each family member required the same amount of space,” Federico says. The result is large guest cabins, with extra-large en-suites, dedicated desk areas, and integrated luggage storage.
Starboard view of the upper-deck skylounge
Special attention has been paid to small details such as magnetic door latches to minimise noise at night when guests are sleeping. The cabin doors also use weighted chains for an effective soft-close mechanism, cutting noise by 40db.
OUTDOOR HAVENS
The lower deck aft houses an intimate beach club that opens on three sides. The folding sides allow for easy access to toy storage from both the outside and inside, not to mention water-level relaxation for guests.
The aft upper deck is linked by stairs to the mezzanine deck
Central steps lead to the main-deck cockpit, a protected area for outdoor living sheltered from the elements, while a second set of steps on either side lead directly to the mezzanine deck. Located halfway between the main deck and the upper deck, the mezzanine creates an area for more intimate gatherings.
“The mezzanine serves two purposes: firstly, to increase guest privacy on the main deck, and secondly, to focus attention on the design of this part of the boat,” says Federico. It also creates a comfortable place for guests to gather when the crew are setting up water toys and arrangements in the beach club.
Aft view of the sheltered, private main-deck cockpit and, above it, the open mezzanine deck offering sea views
Further outdoor seating is found on the upper deck’s aft veranda where guests can dine alfresco. “The veranda is a big extension of this level, with LED heating lamps and sliding glass panels that provide protection from the wind,” notes Federico. Suitable for colder climes, the upper-deck skylounge has an open bar for drinks with a view, and an adjoining gym with a Pullman berth.
The heart of the outdoor arrangement, however, is found on the 145sqm sundeck, with a central bar for cooking and dining, representing how entertaining is at the core of Bel¹’s design. “We created a functional bar with dedicated crew access that can be used for breakfast, lunch and dinner,” Federico says. “It’s not just a bar, it’s universal.”
Port view of the 145sqm sundeck, which includes a central bar, a pool and sunbathing area, plus aft seating (not pictured)
The forward part of the hardtop includes louvres to allow for sun or shade, while a lounge area aft sits under a solid hardtop. A retractable TV serves both the bow sunpads and mini pool, as well as the stern seating area.
Bel¹ is another full-custom win for Rossinavi, where views remain front and centre, and all owner requests have been delivered on, says Federico. “We are extremely satisfied and proud of this project.”
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