Curruira 33, plans for fibreglass construction

Curruíra 33 “Milestone”, built in Turkey to enjoy the beauty of the Aegean and Marmara seas.

Since the Curruira 33 ‘Milestone” was launched in Turkey many people has contacted us enchanted by her beauty and style. The interest came from many places, a Swedish magazine published a section in an article about trawlers saying that it is possible to have a comfortable and attractive trawler without spending millions of dollars.

The original plans of the Curruira 33 were for wood/epoxy construction with strip planking but some people asked us about the possibility of the construction being accomplished with other materials. An experienced trawler sailor from São Paulo – Brazil said the the boat was perfect for his necessities but he needed that the construction would be in sandwich of fibreglass and PVC foam because he had a friend that was a boat builder with experience to work with these materials. We saw this as an opportunity to make that project and offer this design with the option for both types of construction: wood/epoxy and fibreglass/PVC foam.

We chose the PVC foam strip planking as the core material for the sandwich construction, covered with fibreglass lamination from both sides. This method is simple and friendly to the amateurs but also suitable for one off constrution by professional builders, since it is not necessary to spend lots of money and man hours to fabricate expensive moulds that will be destroied later.

Transverse section moulds ready and aligned for the beginning of the construction of the first Curruira 33 in fibreglass/PVC foam sandwich.

The first step is the fabrication of a set of transverse moulds that are fixed to a building grid. Then the PVC strips are laid over de moulds and glued together. After completing the setting up of the PVC the hull receives a rough sanding to remove the sharp edges between the planks, and the surface is faired before the lamination of external layers of fibreglass is accomplished. After the resin is cured, the hull is sanded again to remove any lump or imperfection that might have occurred during the lamination and a couch of epoxy primer s applyed. After the turn over of the hull the internal layer of fibreglass is laminated and the internal reinforcements and bulkheads are aggregated to the hull. The construction continues with the fabrication of the interior, the deck, the pilot house and installations fitting out.

A short time after, as soon as the plans for fibreglass construction were available, our friend commissioned the material and started the construction. Not too long after the first fibreglass/PVC foam sandwich hull of a Curruira 33 was ready for the turning over operation. The builder is now installing the internal structural members and fabricating the interior.

Moulds partly covered by PVC foam strips. At this stage it is easy to visualize the final hull shape.

Preparing for the installation of the bilge keels and the central skeg to the hull.

Turnover of the first Curruira 33 fibreglass hull.

Hull in the upright position. The moulds will be removed for the lamination of the internal layer of fibreglass.

The Curruira 33 is a medium sized displacement trawler, comfortable and economic. It was designed to the kind of people who have a desire for power boats, to enjoy on short trips or longer stays, be that on a specific region or cruising along the cost. The interior has two en suite double-berth cabins and a sleeping accommodation for another couple in the boat’s saloon. The pilot-house is also the internal social area of the boat and where the galley is installed. The pilot seat and the galley are placed at starboard, while there is a U-shaped sofa with table at portside with room for up to six persons to sit comfortably. The displacement hull with fair lines and low drag at cruising speed allows the use of an engine with lower power, reducing fuel consumption and increasing range.

The Curruira 33 interior is fitted with two private cabins, two heads, and a pilot house where the galley and the social area are installed.

Click here to know more about the Curruira 33.