2008 | Sunreef Yachts
Master thesis project in collaboration with the Academy of Fine Arts in Gdańsk


Onefifty is the result of a year-long study into a new, revolutionary concept for modern and luxury catamaran – the megayacht, as an alternative, both aesthetically and functionally, for all current catamarans on the yachting market. 
This unique design technique insisting on pure simplicity and minimalism of form has been successfully adopted by the car industry and is now becoming increasingly popular in yachting.

Onefifty overall views 
The key words for this extravagant design are: uncut teak, sleek shell (hulls) and streamlined core (deckhouse). The futuristic look of Onefifty comes from one big innovation, namely almost invisible full-beam deckhouse. The link between the aft deck and the navigation station on the top is through a centrally positioned sloping deck. We are not talking here about a typical deckhouse shape, as the hulls, sides, bulwark and the superstructure itself are not traditionally shaped but rather combine together into one huge solid. The deckhouse spanning the entire beam provides the significant advantage of creating another level (floor) within the hulls. Thanks to this, the possibilities for arranging space increase remarkably. The main deck has gained impressive living space; all cabins for 12 guests are on this level and are generously illuminated by a big glass top. Below decks are located crew quarters for 7, all storage rooms and the galley.

Exterior design details
A closer look at the whole yacht allows us to see two clearly contrasting structural elements, placed one inside the other. The external layer is a wide clear metallic shell with a black, monolithic core inside. The teak is applied continuously along the hull line, which enhances the sleek shape of the boat. The shell is the most streamlined part of the boat and logically forms hydrodynamic hulls. On the sides, there are two pure, aesthetic lines comprising a set of windows. The core looks like a huge glass construction yet it is not made of glass but simply imitates it. Solar panels can be fitted to provide lots of natural, green energy to the yacht.

As for the deckhouse, the Onefifty does not have a classic deckhouse clearly dominating the bulwark level. This tendency to simplify the profile line can be observed frequently on monohull superyachts. The deckhouse lowers towards the bow section and finally reaches main deck and hulls level. This gives the yacht's profile an expressive look and has an aggressive exterior shape. Pure lines and a minimalist shape can be eqasily disturbed by installing traditional guard rails on board; therefore Onefifty has a profile sleak and clean, free of railings and exploits instead differences in deck levels as a natural protection.

The exterior teak surfaces are the only ones accessible to guests and the glass / solar panels tops above them can be reached by crew only for maintenance purposes and mooring. The teak covering aft section creates an impression of fluidity and seems to fall down from the navigation station throughout the main deck level towards the end of the hull. The transom is hidden by an opening floating deck which can be used as a gangway when docking. This surface is covered by continuously applied teak and continues the aesthetic sleek lines of Onefifty.

Another innovative technical feature on board is the boom which doubles as a crane for the lifeboat or for a large tender to be stowed out of sight, aft of the engine room. The cockpit occupies an unusual place at the forward section of the yacht, and is at the same time, the most important outdoor leisure area. It can be arranged in many different ways; in this case it has been used as a sunbathing area. The cockpit is protected from the wind by the hulls and is therefore a perfect place for alfresco dining with friends in an intimate atmosphere. A foldable sunroof hidden in special panels in front of the mast can be assembled and installed over the navigation station as well. The cockpit is accessible via a corridor from the salon. Additionally, two guest cabins have a direct access to this space as well.

Interior space study
The interior design is based on the specific aesthetic tendency in space organisation; therefore, it is not a final solution, rather a suggestion. The frame supporting glass top is created by symmetric squares and combines very well with the space division of the salon and cabins thereby giving the impression of linear fluidity.

Thanks to high level of luminosity and the glass walls of the salon and alley, the border between indoor and outdoor space is very soft. Guests will be able to enjoy panoramic views looking at the aft or admire flapping sails above their heads. Shade can be created by pulling down blinds between ceiling panels. The sloping deck with glass walls hides below a small garden and mattress and thus create a intimate meditation area which can be converted into a comfortable cinema spot with a huge screen in the shady zone where the sloping deck becomes a fly-bridge.

To enable the crew to operate the yacht efficiently, access throughout the Onefifty for crew and guests has been carefully separated for both parties. Access for guests is aft via large glass doors while the crew enter directly from the hull by a passerelle.

© 2020 Michał Górzyński