New AmaSea 84 catamaran: Culmination of efficiency and innovation
by Sand People 23 Aug 2019 23:26 PDT
New 25-metre AmaSea 84 catamaran © AmaSea Yachts
AmaSea Yachts is set to break boundaries and stereotypes of the yachting industry with its first catamaran. The 25-metre power catamaran AmaSea 84 is going to be one of the most innovative and efficient yachts in its class, while offering unparalleled space, level of comfort and vastitude of customization.
"The project is developed for live on board and long-range ocean cruising," said CEO and Founder Jack Wijnants. "The yacht is designed on the limit of legal 'small craft' range though due to catamaran scheme providing accommodation spaces comparable with much larger superyachts."
"Centuries ago catamarans and multihulls were used by peoples of Oceania and South-East Asia to discover new horizons, providing them naturally safe but home-style transport for long ocean passages," recalls Albert Nazarov of Albatross Marine Design (AMD), the studio behind the AmaSea 84 design. "Combining such impressive heritage and new technologies allowing building lighter boats, only recently the advantages of multihull craft have been appreciated by international yacht industry. Today, catamarans occupy a strong niche in the overall market. In some marinas in Australia and Asia, they already count 25% of the fleet."
Maximum space
The AmaSea 84 is designed to maximize the best qualities of multihulls. It is going to be an oceangoing vessel with extremely soft ride, safe and stable, with higher freeboard and flotation, and vast accommodations and social areas.
Two major factors define architecture of catamarans. They are wide and 'tall', thus generally more spacious than a monohull of comparable size. Due to high initial stability, catamarans can acquire higher/bigger superstructures starting from smaller craft length.
"There is a practical restriction of catamaran's beam between 10-12 meters for access to marinas and moorings," commented Nazarov. "Such beam limitations impose general restrictions on catamarans size if applied to yachts. Therefore, with length exceeding 30 m catamaran advantages are diminished. That is why for the AmaSea 84 project we decided to stick to the maximum efficient waterline length of 23.9 m, while overall length is 25 m."
Comparing to a monohull of the same length, the AmaSea 84 has a similar displacement but also two more guest cabins (6 against 4) and the total area of decks is twice as large at around 547 square meters.
"Catamaran concept offers unprecedented facilities and comfort for limited length," explains Jack Wijnants. "AmaSea Yachts' catamaran has flexible layouts, which can be tailor-made for a particular boat owner. This is possible due to 'square' shapes of catamaran volumes."
Another concept is that owner can bring his interior designer into the AmaSea project, allowing custom interior styling and creating unique yacht.
Lower deck of the AmaSea 84 is used for crew and personnel, with their own essential facilities such as galley. Main deck carries spacious saloon, office and guest cabins, and cooking/serving facilities. Upper deck accommodates pilothouse, and one or two master cabins. Both upper deck and flybridge offer plenty of outdoor spaces smartly planned with sitting areas. The catamaran carries many toys on board, as there are two garages.
Hull shape: stability and performance
The AmaSea 84 designers were concentrated to make sure the new catamaran is characterized with maximum stability and optimized performance.
Desired speed and 'slenderness' of hull are major factors influencing selection of a hull type. Unlike monohull craft, catamarans possess enough stability due to separation of hulls and thus can feature very slender demi hulls with high length to displacement ratios.
The AmaSea 84's hull has a 'canoe' underwater shape and stern platform. Such shape provides excellent protection of stern gear, along with proven hydrodynamic efficiency in number of AMD's designs.
"Stability is seen as main advantage of catamaran platform. Recreational catamarans below 24m in length are covered by ISO12217-1 standard, which provides specific criteria for wide craft," narrates Albert Nazarov. "Though workable, design experiences shows that these requirements impose some disadvantage of high required down flooding angles on catamaran craft. Using CFD methods, we made sure the AmaSea 84 performs well in the water and its maximum speed reaches 20 knots, which is impressive for a tri-deck yacht of that size using moderate engines."
Strong body
Catamarans with their complicated geometry and operational profiles are subject to considerable global and local structural loads, mainly on the bottom and tunnel area.
"As catamarans are sensitive to weight, the concern should be given to structural optimization and weight saving," said Nazarov. "The AmaSea 84 will be built in aluminum, which is very unusual for this type and class of vessels and gives immense advantage to our project."
"Cost effective AmaSea 84 catamaran with length just below 24m is 'small recreational craft' in terms of legislation with simplified registration and manning requirements," summarizes Jack Wijnants. "However, this offers superyacht facilities in terms of space and comfort. Such boat would make a statement in any marina due to its visual impression of size."
Construction
Jack Wijnants is planning to start building the first AmaSea 84 at AmaSea Yachts' own shipyard early next year with delivery scheduled in 2021. The first will take around 20 months to build, but subsequent hulls between 12-16 months. The finishing will take place in the Netherlands to Dutch Quality Yachts standard.
Price range
The estimated base price of the AmaSea 84 is 6.5 million euro.
Short Specs - AmaSea 84'/25m
LOA: 25.45m
Hull: 23.76m
Waterline: 23.74m
Beam: 10.98m
Draught: 1.79m
Air draught: 12.31m
Displacement: 130 tons
Engines: 2xMTU 10V2000 M96 1920hp each
Max speed: up to 18kn
Cruising: up to 11kn
Passengers/crew: 20
Standard compliance: A' ISO Small Craft
Brand story
Founded in 2019, AmaSea Yachts is a completely new company based in Monaco. The story behind that name is quite simple, yet romantic. AmaSea is derived from two words: "amare" (to love in Italian) and "sea". This gives a general idea of the company and its market vision. AmaSea Yachts will be producing proven and robust, oceangoing and custom-made boats for owners who are deeply in love with the sea. These contemporary yachts can voyage regardless of distance or rough weather to explore the world in maximum privacy and comfort.
Range and design
For the moment, the AmaSea range consists of one model: the AmaSea 84'/25m unveiled in early 2019. Production will be limited, offer a high level of customisation (clients are encouraged to choose their own interior designer) and use top quality materials for the construction and outfitting. The company has plans to expand the range. Future models up to 40 meters in length are to be announced in the near future.
Founder
Jack Wijnants is the founder and owner of AmaSea Yachts. "The whole story started with our own requirements, which couldn't be met by the composite builders," explains the experienced yachtsman and boat builder whose family has always owned Dutch-built steel yachts. Originally from Belgium, Jack has lived in Monaco for more than twelve years. Ten years ago, Wijnants started MSAR, a company in Malta that builds patrol, rescue and multi-purpose boats, which he still owns.
Naval architect
Dr. Albert Nazarov is responsible for AmaSea Yachts' innovative naval architecture. He graduated in 1996 with a degree in Naval Architecture from the Faculty of Marine Technology and Shipping at the Sevastopol National Technical University. In 1999, he was a finalist in an international yacht design competition in the United Kingdom, and soon after he started his own boat design business. A boating enthusiast with wide experience in sailing and power boating, he has a Yacht Captain License and IYT Bareboat Skipper certificate.