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Stem 50Aluminium yacht for worldwide travel

Martin Hager

 · 01.07.2025

The striking hull lines and deck layout of the blue water cruiser were created by French designer Nicolas Purnu.
The Italian shipyard Stem Marine, which specialises in workboats, presents the Stem 50, its first sailing boat and a cruising vessel for long voyages. The 15.85 metre long aluminium yacht is intended to set new standards for long-distance cruises with its safety, easy handling and high level of comfort.
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The Italians from Stem Marine are entering the sailing yacht market for the first time with their new Stem 50 model. The focus during the development of the almost 16 metre long sloop was on safety, easy handling and maximum comfort. The new model will celebrate its world premiere at the Genoa International Boat Show in September.

Experience from the professional sector

Stem Marine has many years of experience in the construction of SAR and fire-fighting boats and tugs. This expertise is now being incorporated into the shipyard's first sailing yacht. "For the development of the Stem 50, we brought together many clever minds from the sailing and boatbuilding world," explains Michele Corradi, Managing Director of Stem Marine and a passionate sailor. For the lines and interior design, they worked together with the French designer Nicolas Purnu, who worked for many years in the studio of designer Marc Lombard. The sail plan and deck layout were created under the direction of experienced sailor Luca Sabiu.

Security and living comfort

According to the shipyard from Parma, the Stem 50 is characterised by a protected and functional deck layout. Safety features include a fixed dodger consisting of three curved windscreens, which merges into a fixed bimini with integrated solar panels and covers almost the entire cockpit. At the aft end is a "roll bar" that acts as an equipment carrier. Numerous handrails provide support in rough seas, and the owner sets his gennaker on the permanently installed bowsprit. Below the waterline, a double rudder system, a fixed keel with ballast bomb and crash boxes in the bow and stern areas ensure safety and performance - crucial factors for an ocean-going yacht designed for global cruising.

The Italians placed particular emphasis on "easy sailing" features. These aim to make handling as easy as possible in all weather conditions. Sheets and halyards retracted into the cockpit, electric winches and furling systems as well as a perfectly dimensioned sail set should ensure stress-free sailing. Energy management also plays an important role for long voyages. Solar panels, a double inverter and a LiFePO4 battery ensure good autonomy at sea.

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Customised design options

Future owners have a wide range of options for the interior design of the Stem 50. Both the layout and the choice of materials can be customised.

The price of the Stem 50 is not yet known, and we will also provide a detailed technical specification as part of an exclusive YACHT test.

Martin Hager

Martin Hager

Editor in Chief YACHT

Martin Hager is editor-in-chief of the titles YACHT and BOOTE EXCLUSIV and has been working for Delius Klasing Verlag for 20 years. He was born in Heidelberg in 1978 and started sailing at the age of six, in an Opti of course. This was soon followed by 420s, Sprinta Sport and 470s, which he also sailed on the regatta course with his brother. His parents regularly took him on charter trips through the Greek and Balearic Islands. Even at a young age, it was clear to him that he wanted to turn his passion for water sports into a career. After graduating from high school and completing an internship at the Rathje boatbuilding company in Kiel, it was clear that he did not want to become a classic boatbuilder. Instead, he successfully studied shipbuilding and marine engineering in the Schleswig-Holstein state capital and focused on yacht design wherever he could. His diploma thesis dealt with the “Testing of a new speed prediction method for sailing yachts”. In 2004, the superyacht magazine BOOTE EXCLUSIV was looking for an editor with technical and nautical background knowledge, a position that was perfect for Martin Hager. The application was successful and a two-year traineeship was arranged. After twelve years as an editor, the editorial team changed and he took over responsibility for BOOTE EXCLUSIV as editor-in-chief in 2017. After long-time YACHT editor-in-chief Jochen Rieker moved to the role of publisher, Martin Hager also took over the position of editor-in-chief of Europe's largest sailing magazine YACHT, which is celebrating its 120th anniversary this year, at the beginning of 2023. When he's not working on topics for the two water sports titles, Martin Hager likes to go out on the water himself - preferably with kite and wingfoil equipment or on a little after-work trip across the Alster.

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