Owners: Marco Margheri e Massimo Sabatini
Project: Vismara Marine, Nabys

Nab 12.50 is a joint project by Nabys and the Vismara team. The interior was designed by owner Sabatini. A yacht conceived for fast and sporty sailing no less than comfort. Whether for a day out, a family cruise or an offshore race, the yacht meets the owners’ requirements for versatility.


Its lines are contemporary and rational, streamlined in its naval geometry and general appearance. It was conceived to be fast on the water more than on a tonnage regulation, and for this reason it is able to offer volumes suited to the needs of life on board and cruising.


A boat that combines classic elements, such as the use of wood, with innovative elements, such as the use of linen fibres, an electric motor and modern, high-performance water lines.

nba 12.50 yacht 12 metri
Nab 12.50 RS
The project


Overall lenght 12.50 meters. Her lines are specially designed to deliver fast acceleration, thanks to a low displacement, and extraordinary performance at light speeds, thanks to a reduced wet surface when tilting and at downwind speed.


As the wind grows, with the increase in upwind heeling, the dynamic length extends over the edge of the hull, increasing the critical speed of the hull, while at downwind speeds the boat takes advantage of the taut and powerful lines to quickly get up on plane.


Despite the high performance, the boat boasts easy handling, so much so that even a crew of passionate sailors can steer it in offshore regattas with the possibility of obtaining excellent results.

Nab 12.50 RS


The lightness, sturdiness and rigidity of the boat result from an excellent construction. The hull is made of wood (Canadian red cedar) and reinforced with flax fiber. The same plant fiber is also used for the cedar and okoumé marine plywood deck. The whole is then impregnated externally with resins.

The result is a lightweight and high-performance boat made with the most sustainable techniques and materials (and the least use of carbon).

Ecological consequences aside, an electric engine offers the immediate advantage of eliminating noise, vibrations and bad smells. The power supply is provided by lithium batteries.


In case of long-range cruises, it is possible to install a “Range Extender” generator, which can be easily removed when you want to lighten the boat as muc

fuels, some solar panels are installed on the deckhouse and the engine can be used as a hydrogenerator to recharge and maintain the batteries.


Several elements make the interiors of the Nab 12.50 RC unique. Starting from the careful study of the weights, which thus allows for a symmetrical distribution.

In addition, a great brightness and internal visibility ( almost 360 degrees) offered by the windows positioned on the three sides of the deckhouse and on the bulwarks. Wide spaces are exploited wisely. There is the possibility of removing the side lockers to reduce the weight and lower the center of gravity. The layout includes: two twin cabins aft; two bathrooms, one of which with shower; a living area with dinette, a galley on one side and a chart table on the other; a large cabin with double wardrobes forward of the mast.


The Sail Plan

To guarantee the necessary stability to a powerful sail plan and a very light displacement, the Nab 12.50 is equipped with a fixed keel with a highly straightening geometry and a draft of 2.48 meters. The wheel has a single high-efficiency blade and, thanks to its length, contributes to the general upwind performance of the boat.

The sail plan, supported by a mast and an aluminum boom, is very far back. This allows for a powerful bow triangle, albeit with minimal overlap between the mainsail and genoa and a very efficient staysail. At downwind speeds, a Code 0 or a large surface gennaker can be hoisted to enhance the hull’s ability to “fly” over the water. The mainsail, given the philosophy of the project, is square top, but it is possible to opt for a traditional cut if you want less surface at the top.

The deck plan, designed with the help of experienced competitive sailors, includes 6 winches, two positioned in front of the wheelhouse that can also be reached by the helmsman and four on the deckhouse arranged to optimize the position of the crew. This uncommon configuration allows the most sophisticated adjustments and maneuvers typical of a regatta, but also allows to face navigation with a small crew in total safety.

Nab 12.50 RS



yacht 12 metri in legno progetto cartaceo
yacht 12 metri progetto cartaceo
Lenght Over All:

12,48 m

Waterline Length:

12,09 m

Max Beam:

4,30 m


2,44 m

Unladen Displacement:

5,9 t

Sail plan


58,00 m2


49,00 m2

Code 0:

115 m2

A 0:

120 m2

Upwind sail plan:

107,00 m2

Downwind sail plan:

178,00 m2

Electric Engine:

sd 10 kw

Power Supply:

batterie 48v

Water Tank Capacity:

2 x 150 l

Generator Fuel Tank:

55 L

Solar Panels
Optional Generator:

Range extender 4 kW




6 + 2 in dinette


Wc e doccia/spogliatoio separato



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