Beside the Palladium concept Rossinavi presents also the 44m Poseidon ice class explorer yacht

Poseidon was designed by Enrico Gobbi and his design studio Team 4 Design from Venice. Poseidon is a luxury 44 metre, aluminium, four-deck expedition vessel-inspired motoryacht.

Gobbi’s intent was to design a robust, ultra-safe and powerful, comfortable round the world cruising yacht. lts style is described by Enrico Gobbi as “military and luxury” with aesthetic details recalling the automotive design, and overall lines that are very architectural. The semi displacement vessel offers a fantastic 10,000-mile range, extreme functionality and absolutely unbeatable seafaring prowess.

Comments by Federico Rosse, COO of Rossinavi:

“Poseidon is designed as a ‘go-anywhere exploration yacht’ and the construction in Ice Class 1B permits this yacht to navigate in areas where it’s likely to encounter floating ice. The main impact of this ice class is the reinforced ‘ice belt’ around the hull able to resist impact loads even greater than 55 tonnes per square metre. The entire yacht project contain all aspects of this specific regulation under the technical point of view, emphasizing the right relevance to specific needs in navigation systems, comforts and  living spaces.”

Poseidon 44m is finished to an impeccable standard of comfort: its bright, spacious and luxurious interiors ensure an ongoing contact with the sea and the sky.
The designer Enrico Gobbi, in fact, pursued the intent to create a project without distinction between the design of exterior and interior spaces . The continuous dialogue between these is emphasized by the 8 vertical windows on both sides of the main deck that give great light inside the formal dining area and gym, and not least by the semicircular “glass house” master suite on the upper deck that guarantees to the Owner a splendid view over the sea.Furthermore a wide V shape kink has been designed on the hull in correspondence with the main deck saloon, both port and starboard, in order to allow the widest possible panoramic view from the interior of the lounge area. The most stunning detail of this yacht although is it’s stylish stern with a fantastic enclosed pool and beach area.The glass pool located aft has a diamond-cut bottom edge just above the yacht name showing through the water; a detail that guarantees a “wow” effect when the stern platform is open in the “beach” configuration.The main deck cockpit also has a large dining table for all the yacht’s guests, and a sitting area with sun pads adjacent the pool. Another sun area is located on the fly deck, with sun beds, lounge sofas and a fully equipped exterior bar. The external decks of Poseidon have plenty of space for enjoying the outside thanks to the various configurations of sitting, lounge, dining and sun areas, and the Master has his own private exterior lounge area on the upper deck.

The interior style of the yacht is characterized by a compromise of modem lines, brought to an essential minimalism and accompanied by precious coating materials, which definitely gives the rooms a high quality of elegance and luxury. The elegance of the interior areas is emphasized by the use of furniture and decorative objects belonging to the Armani Home collection (armchairs, wooden loose furnitures, table lamps, textiles). The most used materials are dark wengé wood, used and calibrated to carry out the major and most important furnishings, in combination with textiles in various gradations of grey and dove colour (all textiles belonging to the Armani Home collection) used for wall coverings, decorative cushions and bedspreads. In certain significant parts, rooms have been preciously decorated with walls covered in white onyx, which has then been backlit to create unique atmospheres of light. The main furniture parts designed for interior areas are loose objects, detached from walls, often suspended (as far example the Owner’s bed) and always emphasized by a diffused indirect light.

The naval architecture and marine engineering of this explorer vessel has been developed by Arrabito Naval Architects, who have studied particularly efficient hull lines able to run in low consumption long range, but also to reach higher top speeds than an usual full displacement explorer vessel.
With the standard engines option (C32 Acert Caterpillar 2x 1300 bhp) this vessel will reach a top speed of about 17 kn, while with the optional propulsive solution of MTU 16v2000M94 (2×1936 kw) the top speed will be of about 20 kn (cruise speed of 17 kn).

The hull, decks and superstructure will be totally built in Marine Grade Aluminium, the idea is that both hull and superstructure could be light grey colour recalling a Marine vessel.
The structural calculation will be aided with finite element methods (F.E.M.) to guarantee the lightest and stiffest explorer vessel in its own category.

Main specifications

Length over all:43.85 m
Beam:8.90 m
Draft:2.12 m
Exterior Design:Team 4 Design - Enrico Gobbi
Naval Architecture:Arrabito Naval Architects
Interior Design:Team 4 Design - Enrico Gobbi
Max. speed17 knots
Cruising speed14 knots
Engines:2 x Caterpillar C32 Acert (1300 bhp each)
Range:10.000 nm

About ICE Class Yachts

Some technical facts relevant to the assignment of an “ICE CLASS IB” to a pleasure vessel.

The notation ICE CLASS IB stands for vessels capable to sail in a channel kept open by an Ice-breaker, with ice having 0.6 m thickness max.
The notation involves interventions at the level of:

  • Hull scantlings and strength;
  • Machinery, rudders, propellers and shafting;
  • Stability;
  • De-icing and antifreezing.


Provided that the Design Water Lines with fully laden and lightship conditions are calculated, an “ICE-BELT” is established having an height starting 0,4 m above the fully laden condition WL extending down for 0.6 m below the lightship WL.
For instance, if the draft difference between the two said load conditions is 0.3 m, then the total height of the ICE-BELT will be 0.6+0.3+0.4 = 1.3 m.
The length of the vessel is divided in three regions, fore, mid-ship and aft and the scantlings will decrease moving from the bow, fore region, to the aft one.
The increased scantlings will interest the ICE-BELT as above, and will involve:
The plates thickness which, besides an increased value due to the ice pressure, will have an “abrasion addition” (minimum 2 mm) to withstand the ice “fretting corrosion”;
The stiffeners sectional modulus and spacing (maximum 0.45 m for ICE CLASS IB).
Finally, attention will be drawn on the metallic materials choice, which will have to be capable to withstand low temperatures.


The minimum allowed power on an ICE CLASS IB vessel will be 1000 kW (1360 SHP).
The rudders thicknesses and scantlings will have to follow the ones applied to the hull.
The rudder stocks and the propeller shafts will be calculated with scantlings higher (basically 1.3 times) than the standard ones.
The propellers will have increased scantlings and material/stiffness-wise will have to be calculated to withstand the hit with a 1.5 m thick ice block.


The intact and damaged Stability Information Booklet (SIB) will have to prove that the vessel maintains a stability as per Rules also with ice on all the exposed external decks with a rate of 140 kg/m2 (ice thickness 14 cm).


All the sea water chests (Main Engines and Generators refrigeration, fire pumps, water-maker, etc.) must be provided with anti-freezing systems.
To avoid the ice addiction on decks over the limit as above, de-icing heating systems 200-300 W/m2 must be provided.
Further provisions must be taken in order to avoid that vital systems such as the anchoring one are put out of duty because of the ice presence.