Seawolf X 42.8m hybrid-electric Charter Catamaran by Rossinavi 🤖

Rossinavi has launched its “most innovative project” to date, a 42.8-metre hybrid-electric catamaran named Seawolf X. Construction began at the Monaco Yacht Show 2022, with the concept unveiled during Miami Design Week in 2021.

Exterior design is by Fulvio De Simoni Yacht Design, marking the first project presented by the pair since the 49.1-metre Aurora in 2017. It also marks the first multihull project for the shipyard.

A key characteristic of the model is her three “performance scenarios”. On one-day trips, Seawolf X can cruise in full-electric mode for 100% of the time; on multi-day trips, she can cruise for 90%; and on transatlantic trips, she can still cruise in electric mode for 80%. When the catamaran is moored, a “hibernation mode” activates for reduced consumption – with the energy generated able to be given back to the quay or to a private property. She can recharge at the shore in five hours and supplies enough energy to charge up an entire villa.

Rossinavi has also developed an onboard artificial intelligence system, called Rossinavi AI, to analyse the operation of the vessel, predict the needs of guests and communicate with the crew on “lower-impact behaviours” and “conscious cruising”. The AI can also monitor the battery pack to keep it in a range of 20 to 80%.

Her exterior is low-profiled and reminiscent of a sports car, with Fulvio De Simoni Yacht Design seeking “to liberate their minds from preconceptions” around catamaran design. The team also integrated solar panels into Seawolf X and addressed hull efficiency by developing “lightweight solutions”, including an anchor installation that meets weight standards while enhancing aesthetics.

New York-based design firm Meyer Davis have created an interior that “complements the cutting-edge yacht to bring relaxed luxury and sustainable design to its forefront,” the shipyard said. The decor takes inspiration from nature, in particular the sun, the sea and sand.

Accommodation is for 10 in four cabins. Leisure highlights include a convivial cockpit centred around a pool, an expansive sundeck with sunbathing and living spaces, and a bow area that features a hidden pool and convertible home theatre. Accommodation is for up to 10 guests in four cabins located in the hulls.

“After years of study and construction, it is now a source of satisfaction and pride for us to witness the launch of project Sea Cat, now Seawolf X, the first hybrid-electric multihull vessel,” said Federico Rossi, COO of Rossinavi. “This yacht showcases remarkable technological innovations in both power management and propulsion technologies, marking the beginning of a new chapter in next-generation vessels.”

Seawolf X also carries the BLUE label, the shipyard’s “sustainable” design philosophy established in 2022. Inspired by phytoplankton, the BLUE fleet absorbs sunlight during the day and utilises photovoltaic technology to convert it into energy. This energy is stored in advanced batteries and released at night, creating a bioluminescent effect “akin to glowing plankton”.

The catamaran sits below the 500GT threshold with a beam of 13.8 metres and a maximum draught of two metres.

Seawolf X Yacht

42.75 m (140’2″)
499 GT
Rossinavi
2024

Overview:

About Seawolf X Yacht: Seawolf X is a motor yacht with an overall length of 42.75 m. The yacht’s builder is Rossinavi from Italy, who launched Seawolf X in 2024. The superyacht has a beam of 13.75 m, a draught of 1.85 m and a volume of 499 GT.
Seawolf X features exterior design by Fulvio De Simoni Yacht Design and interior design by Meyer Davis. Up to 10 guests can be accommodated on board the superyacht, Seawolf X, and she also has accommodation for 7 crew members, including the ship’s captain. Seawolf X has an aluminium hull and an aluminium superstructure.

Seawolf X boasts a maximum cruising range of 3850.0 nm at 8.0 kn, with power coming from two diesel electric engines. She has a gross tonnage of 499.0 GT and a 13.75 m beam.

Designed by Fulvio De Simoni, who also completed the naval architecture. Fulvio De Simoni has designed 181 yachts and created the naval architecture for 110 yachts for yachts above 24 metres.

Her interior was designed by Meyer Davis – she is built with a Teak deck, an Aluminium hull, and Aluminium superstructure.

SEAWOLF X YACHT CHARTER
42.75m / 140’3″ | Rossinavi | 2024
BOOK THIS YACHT

SPECIAL FEATURES:

Brand New for 2024
Generous Pool
Sleeps 12 Guests
Shallow Draft & Fast Speeds for Reef Exploration

Seawolf X is the ultimate choice for a perfect yacht charter vacation!

The 42.75m (140’3″) catamaran yacht ‘Seawolf X’ offers an unmissable chance to charter a brand new superyacht, launched this year. Delivered by the Italian shipyard Rossinavi and featuring stunning interior styling by Meyer Davis, she comfortably accommodates up to 12 guests in 5 luxurious cabins.

For a unique luxury yacht charter experience, Seawolf X offers a variety of convivial social and dining options, along with well-laid-out deck areas perfect for relaxing and entertaining family and friends.

GUEST ACCOMMODATION
Built in 2024, Seawolf X offers accommodation for up to 12 guests in 5 suites:
1 Master Suite
2 Double Cabins
2 Cabins that can operate as Twins or Doubles
She also carries up to 7 crew members to ensure a relaxed luxury yacht charter experience.

ONBOARD COMFORT & ENTERTAINMENT
Stay comfortable and entertained on Seawolf X with amenities like:

Pool for practice or cooling off
Deck Jacuzzi to soak up the scenery
Wi-Fi connectivity to stay connected
Air Conditioning for complete comfort

PERFORMANCE & RANGE
Seawolf X boasts an aluminium hull and superstructure with a shallow draft of 1.85m (6’1″), allowing her to anchor closer to coves and sheltered bays overnight.

Book your next Mediterranean luxury yacht charter aboard Seawolf X this summer. She is also accepting winter bookings for Caribbean cruising!

Luxury catamaran Seawolf X is one of a kind, offering world-class amenities and a toy box full of the latest water sports gear for unforgettable yacht charters wherever you are.

AMENITIES & ENTERTAINMENT
For your relaxation and entertainment, Seawolf X features:

Convertible Cinema
Sun Deck
Wi-Fi
Sunpads
Swimming Pool
Deck Jacuzzi
Air Conditioning

Exterior Design & Collaboration
The 43m Rossinavi Seawolf X Catamaran boasts an exterior crafted by Fulvio De Simoni Yacht Design, marking their first project with Rossinavi since the 49.1m Aurora in 2017. This innovative vessel also represents Rossinavi’s first multihull project. Meanwhile, Meyer Davis, a New York-based design firm, shaped the interiors with an ethos of relaxed luxury and sustainability, drawing inspiration from nature —the sun, sea, and sand.

“Seawolf X provided us with the opportunity to create something truly different—a catamaran that is elegantly designed but grounded in sustainability,” said Will Meyer, co-founder of Meyer Davis. “We leaned into natural materials and refined details to ensure the interiors feel both welcoming and sophisticated.”

SEAWOLF X CHARTER RATES & DESTINATIONS

Mediterranean Summer Cruising Region
SUMMER SEASON (May – September)

Low Season: €380,000 p/week + expenses (~$407,500)
High Season: €420,000 p/week + expenses (~$450,000)
Crusing Regions: Monaco, Hot Spots: Calvi, Cannes, Corsica, French Riviera, Sardinia, St Tropez

Caribbean Winter Cruising Region
WINTER SEASON (October – April)

Low Season: $380,000 p/week + expenses
High Season: POA
Cruising Regions: Bahamas

CHARTER SEAWOLF X

CHECK AVAILABILITY

Note to U.S. Customs & Border Protection

GUESTS: 12
CABINS: 5
CREW: 7
CABIN CONFIGURATION:
1 Master
2 Double
2 Double/Twin

SPECIFICATION
LENGTH: 42.75m / 140’3″
BEAM: 13.75m / 45’1″
DRAFT: 1.85m / 6’1″
GROSS TONNAGE: 499 GT
BUILT: 2024
BUILDER: Rossinavi
MODEL: Custom
EXTERIOR DESIGNER: Fulvio de Simoni
INTERIOR DESIGN: Meyer Davis

SEASONAL CHARTER RATES
SUMMER

FROM €380,000 p/week + expenses (~$407,500)

WINTER

FROM $380,000 p/week + expenses

Contact Us to Book Seawolf X Today!

The price for a new Seacat 43 unit is approximately €40M , depending on the customizations requested by the client .

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What Do a Catamaran and the Sun Have in Common?

The term “catamaran” originates from “kattu maram,” meaning “wood tied together” . This name hails from the boats used by the Palavas on the southern Tamil coast of India . Catamarans are renowned for their perfect blend of movement and stability .

The Sea Cat project was born from a vision to merge solar panels with sleek, sporty, and attractive designs. With its soft curves, the boat exudes a sophistication that’s hard to ignore . Why opt for a double hull? Mainly for its capacity to house more solar panels than a monohull of the same size , which is crucial for an eco-friendly electric boat . The design features sinuous lines that seamlessly integrate the superstructure with the hull, creating a streamlined and elegant catamaran .

Multihulls provide additional square meters on the upper deck, ideal for maximizing solar panel usage . The two hulls are independent and waterproof, each with fully autonomous cabins, enhancing the boat’s security . The catamaran’s reduced draft allows access to shallow waters, and the generous deck space offers extra living areas , making the Sea Cat experience unique . Moreover, catamarans generate significantly smaller waves than monohulls, helping to protect the sensitive seabed . The cabins, located in both hulls, offer more privacy, and each room features a window overlooking the sea , creating a bright and airy environment.

In essence, the Sea Cat project combines the stability and spaciousness of a catamaran with the renewable energy of solar power , offering a luxurious and eco-friendly boating experience .

Name	SEAWOLF X
Flag	Malta
IMO	–
MMSI	256760000
Call sign	9HA5965
AIS transponder class	Class A
General vessel type	Pleasure Craft
Detailed vessel type	Pleasure Craft