65m Heesen FDHF yacht YN 16465’s superstructure and hull joined

Heesen Yachts are proud to announce that last year, in December, 2011 the hull and the superstructure of the 65m YN 16465 Heesen FDHF superyacht were joined together. The construction of the hull and superstructure of Heesen YN 16465 yacht started in December 2011 at the facility in Oss, and marked the culmination of years of meticulous planning.

Frank Laupman, from Omega Architects, who are responsible for the exterior design, was delighted: “Being able to see the joining of the hull and superstructure is a great thing for me – who drew the first sketch that was just some 40cm long. Today I can finally see that the lines I sketched on paper more than two years ago, work in reality.”

The revolutionary Fast Displacement Hull Form (FDHF) was developed by Van Oossanen and Associates and  was very keen to see the results of their work: “It is always exciting to see a project materialize. However, on a project like this, of this size, with so much effort put in the development prior to construction, it is three times the excitement. To see the high level of quality Heesen has put in the hull construction, and it being combined with the superstructure for the first time, is very thrilling.”

The FDHF uses innovative techniques in the construction of its decks, bulkheads and part of the superstructure plating. 300mm wide extruded aluminium plates are welded together using a ‘friction-stir’ technique to form huge plates 2,5 metres by 12 metres in size. Essentially this means the plates are welded together without adding welding material: this method, developed by NASA, has the enormous benefit of creating less heat during the welding process. The result is a large plate with uniform mechanical properties and much fairer and smoother construction. As ever, the famously high quality Heesen building process begins at the very first rung of construction.

Dickie Bannenberg of Bannenberg and Rowell Design, responsible for the interior design of the 65m motor yacht YN 16465 comments: “Looking at the metal work you can sense the precision at the yard and see the result of immaculate teamwork. Even sitting in the water in bare metal, the yacht exudes speed and intent. We can’t wait for our interior to go in.”

When combined with sophisticated naval architecture, the improved construction techniques result in a vessel that is 30% more efficient than a round-bilge motor yacht. The Heesen 65m FDHF superyacht’s advanced design combining a narrow beam with a specific hull form results in a very low wave profile over the entire speed range, while also improving its sea-keeping and manoeuvrability. This provides a very positive impact on the cost of running the yacht, as well as the lowering of its environmental footprint due to reduced engine emissions.

Fabio Ermetto, Sales and Marketing Director at Heesen Yachts sums up the project: “Heesen Yachts is well known in the yachting industry for being a shipyard that likes challenges. We are proud to be the first shipyard to build a yacht featuring this innovative hull configuration, the Fast Displacement Hull Form by Van Oossanen, which is the perfect platform for creating a new luxury yacht in which increased performance and reduced environmental impact begin with the hull design. It is very exciting, one year after the keel laying ceremony, to see that the project is taking shape!”

65m Heesen FDHF superyacht YN 16465 is now in the outfitting stage in the enlarged and renewed dry dock in shed no. 5 at the Heesen facility in Oss, the Netherlands. Her delivery is scheduled for June 2013. Join in the excitement and buzz surrounding YN 16465 and the FDHF by watching the time lapse “making of” movie as well as the documentary showcasing the joining of hull and superstructure on the Heesen YouTube channel.

Hull type: Aluminium

Naval Architect: Van Oossanen – Heesen Yachts

Exterior Designer: Omega Architects

Classification: ABS X A1 Yachting Service X AMS Large Yacht Code LY2 / MCA

Hull material: Aluminium

Superstructure material: Aluminium

Length over all: 65,00 metres

Beam over all: 11,40 metres

Draft propellers max.: 3,05 metres

Displacement (50% load): 550 tons (approx.)

Speed maximum (half load): 27,0 knots

Speed cruising (half load): 24,0 knots (at approx 75% engine power output)

Range at 14 knots: 4.500 Nm

ABS X A1 Commercial Yachting Service X AMS

Large Yacht Code 2

Guests: 12

Crew: 13 (including captain)

Fuel capacity: 90,0 m3

Fresh water 30,0 m3

Fresh Water capacity: 30,0 m3

Main engines: 2 x MTU 20V4000M93L, each developing 4.170kW at 2100 rpm

Gearboxes: 2x ZF 23560

Propulsion: Stainless steel shafts with 5 blade fixed pitch props

Stabilisation (at zero speed): 5x Seakeeper gyroscopes, M21000