Boreal sailboats: aluminum built for the far latitudes, from one sailor's own voyage
Boréal is a small yard in Tréguier, on the north coast of Brittany, building custom aluminum centerboard cruising sailboats designed for high-latitude and expedition sailing. The line traces directly to founder Jean-François Delvoye's own six-year family circumnavigation, and to a construction approach — full-aluminum hulls, grounding-capable keels, corrosion-engineered fittings — worked out at sea rather than at a drafting table alone. Writing in 2016, Charles Doane called the yard, then barely ten years old, the rising star of France's aluminum centerboard scene, crediting a build quality that rivaled the early Garcia yachts that had defined the category for decades before Boréal existed.
Origins and ownership
Boréal's own history page credits Delvoye as "navigator, architect, founder" — a description that captures how directly the company grew out of his own sailing. His first Boréal design took shape in notebooks kept during a six-year trip that carried him, his wife, and their four children around the world aboard a 12-meter yacht he had built himself in his garden, a voyage that ran from the Mediterranean to Cape Verde, to Brazil, to Argentina, with its apotheosis two years spent wandering Patagonia's canals. Port calls along the way brought him into contact with sailors including Philippe Poupon, Oleg Belly, Alain Caradec, and Bertrand Dubois, encounters that shaped his thinking about an ideal cruising yacht. Back on land, he drew a 15-meter aluminum boat in full detail in 3D on his own computer; two of those boats sold before the prototype had even touched water, and the first sea trials, in the yard's account, "totally validated" the design. Boréal itself was founded in 2005 — by Delvoye alone, not with a partner — a company he described as created almost by chance, with three experienced-sailor clients who backed the concept early.
Five years later, in 2010, Delvoye was joined by Jean-François Eeman as managing director; the two had met years earlier on a pontoon in Ushuaia, Argentina. Eeman, who had worked for major sailing events and taken more than 50,000 people to sea through his own companies before joining Boréal, took delivery of the first Boréal 44, built for him and his family. From the outset, the yard's own account credits Eeman with looking after clients and their projects, and credits Delvoye with drawing every yacht it built, having built the first one himself, and heading its design and engineering team. Despite the Tréguier yard's French address, both founders are Belgian.
Construction through the eras
Boréal's boats are full aluminum, hull, deck, and pilothouse alike, cut from high-quality 5083 and 5086 H111 alloy sourced from Norway. Pieces are laser-cut off site on a CNC machine and delivered to the yard ready to weld, with plate thickness varied through the hull — 10mm at the bottom and keel area, tapering to 4mm at the deck, coachroof, and cockpit. Corrosion protection runs through the build: hulls below the waterline are sandblasted and given an epoxy barrier coat within eight hours, and custom plastic and anodized bushings isolate dissimilar metals wherever they meet. Testing the 52, a Yachting World reviewer called its build quality and finish "immaculate throughout," pointing to details like a chined alloy hull, a solid alloy "bye-bye weather" door, and a doghouse built as permanent aluminum structure rather than the canvas-on-tube-frame arrangement common elsewhere.
The centerboard hulls are engineered to take the ground. SAIL's review of the 47 described a centerboard partially enclosed in a thick skeg, paired with a stubby rudder, that lets the boat readily beach itself, while Attainable Adventure Cruising contributor Colin Speedie credited the boats' external keel box with lowering ballast effectively enough to give a real stability edge over comparable centerboard designs. On the later 47.2, Yachting World documented an ice-breaking stem, watertight bulkheads, and 8-10mm bottom plating over substantial framing built for the same purpose, along with a shallow, 80cm-wide vestigial keel the yard calls the "embryo," which houses the centerboard case, tankage, and lead ballast while doubling as a base the boat can dry out on.
Lines and generations
The Boréal 44, launched in 2009, won France's Yacht of the Year award within two months and the same prize in Holland the year after. The 47 followed as a stretched evolution of the 44, gaining roughly three feet through a reverse transom and swim step, and debuted at the Annapolis Boat Show in 2017 before Cruising World named it its overall Boat of the Year for 2018. The 52 took the Bluewater Cruiser category at the 2015 European Yacht of the Year awards.
Boréal later revisited its two smaller hulls as the 44.2 and 47.2, designed, the yard says, after gathering feedback from more than sixty owners of the original 44 and 47. Attainable Adventure Cruising's test-sail review flagged an important difference from the earlier pair: where the original 47 had simply been a lengthened 44, the 44.2 is closer to a shortened 47.2, a reversed relationship between the two hulls. The 47.2 picked up its own recognition quickly, taking a Special Prize of the Jury at Voile Magazine's Sailboat of the Year in 2020 and the European Yacht of the Year's Bluewater Cruiser award outright in 2021. Over time the range grew further still, adding the larger 55, and later the 55oc and 70.
Who Boreal is for
Boréal's boats are built for sailors headed toward higher latitudes and remoter coastlines than most production cruisers are designed to reach — grounding-capable, corrosion-engineered aluminum construction that traces back to a founder who worked out his own requirements over a six-year family circumnavigation before he ever drew a hull. Writing in SAIL in 2017, Charles Doane placed the yard among the "aluminum Illuminati" of Europe, a small builder that had earned a reputation for construction quality well beyond its size.
