Boreal 47

2017 Boreal 47 is an aluminum, lifting keel sailing yacht.

Designed for serious offshore and high-latitude cruising, this Boreal 47 was named "Boat of the Year" in the U.S. in 2017

Hull Material: All aluminum construction (high-quality 5083 and 5086 H111 alloy), known for its strength and ability to be beached.
Keel Type: Features a lifting (centerboard) keel and twin aft daggerboards, allowing for shallow draft access while offering deep-keel performance when deployed.
Doghouse: A signature feature is the raised deck saloon/doghouse navigation station, providing panoramic, 360-degree visibility and protection from the elements.
Interior: Joinery is natural Ash, with a practical layout designed for offshore passages, including leeboards for sleeping while underway.
Storage: Ample storage is a key design element, including a large aft lazarette and a sail locker in the bow.

Boreal 47 Boat Specs

Dimensions

Tanks

Boat Name:

LUNACY

LOA:

47’’ 7”

Fresh:

200 gallons

Boat Make:

Boreal

Fuel:

160 gallons

Boat Model:

47

Beam:

14'1"

Boat Designer:

Jean-François Delvoye

Boat Builder:

Boreal Yachts

Boat Year:

2017

Maximum Draft:

8'1"

Hull Material:

Aluminum

Minimum Draft:

3'4"

Keel:

Centerboard

Displacement:

27230 lbs

Ballast:

8377 lbs

Disclaimer: The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Vessel Overview:

Step aboard the Boreal 47, and you’ll immediately understand why this design has earned a reputation as one of the most thoughtfully engineered blue-water cruisers afloat. Every detail serves a purpose — and together, they create a vessel with exceptional balance, strength, and offshore capability.

From the windlass positioned at the mast base to keep chain weight low and centered, to the tanks, batteries, and ballast strategically concentrated, the Boreal 47 delivers a level of sea-kindliness few yachts can match. Dual watertight crash bulkheads, forward and aft, offer an added layer of security and make this yacht truly expedition-ready.

Yet all this rugged practicality is wrapped in a design that feels effortlessly elegant. The Boreal 47 achieves that rare harmony of form and function — purposeful without being utilitarian, luxurious without a hint of pretense. And if you’re searching for a true ultra-shoal-draft cruiser that’s as beautiful as it is easy to own and maintain, you would be remiss not to experience LUNACY firsthand.

LUNACY was purchased new in France in 2017 and proved her pedigree immediately with a North Atlantic crossing to New England. She was showcased at the U.S. Sailboat Show in Annapolis in 2017 and 2018 and earned top honors as Cruising World’s 2018 Boat of the Year. Since then, she has spent idyllic summers on the coast of Maine and winters exploring the Caribbean and southeastern U.S.

Professionally maintained and continually upgraded by the highly regarded Maine Yacht Center, LUNACY represents a rare opportunity to own a Boreal 47 that is fully proven, meticulously cared for, and ready for her next adventure.

Step aboard — and discover why sailors around the world consider the Boreal 47 in a class of its own.

2018 Boreal 47 is an aluminum, lifting keel sailing yacht designed for serious offshore and high-latitude cruising. It was named "Boat of the Year" in the U.S. in 2018

Hull Material: All aluminum construction (high-quality 5083 and 5086 H111 alloy), known for its strength and ability to be beached.
Keel Type: Features a lifting (centerboard) keel and twin aft daggerboards, allowing for shallow draft access while offering deep-keel performance when deployed.
Doghouse: A signature feature is the raised deck saloon/doghouse navigation station, providing panoramic, 360-degree visibility and protection from the elements.
Interior: Joinery is natural Ash, with a practical layout designed for offshore passages, including leeboards for sleeping while underway.
Storage: Ample storage is a key design element, including a large aft lazarette and a sail locker in the bow.

Full Specs:

Boreal 47 – Lunacy

Exceptional Aluminum Expedition Cruiser – Fully Equipped & Ocean Ready

The Boreal 47 is widely regarded as one of the most capable and intelligently designed aluminum bluewater cruisers in the world. Lunacy is an excellent example of the model—robustly constructed, thoughtfully equipped, and maintained with significant recent upgrades in the past several years. With her insulated aluminum hull, centerboard/daggerboard configuration, watertight bulkheads, and expedition-level systems, she is purpose-built for high-latitude sailing, remote passages, and comfortable long-term living aboard.

Freshly updated mechanical systems (new transmission, mounts, shaft, seal, muffler, propeller) combined with a complete, well-maintained sail inventory and a comprehensive electronics and safety suite make Lunacy turnkey for her next adventure.

SPECIFICATIONS

LOA: 47.7 ft
LWL: 46 ft
Beam: 14 ft
Draft: 3'3" (board up) / 8'1" (board down)
Displacement: 26,638 lb
Ballast: 8,378 lb
Sail Area: 1,067 sq ft (100%)
Engine: 60 hp Nanni Turbo Diesel
Water Capacity: 200 gal
Fuel Capacity: 158 gal
Designer: Jean-François Delvoye
Builder: Boréal Yachts – Tréguier, France

CONSTRUCTION & DESIGN

All-aluminum hull and deck, MIG/TIG welded in Argon (5083/5086 alloys) — hallmark Boreal strength
Heavy-duty plating: 10 mm bottom & keel; 8 mm lower chine; 5 mm mid/upper chine
Deck/roof/cockpit: 4 mm; Transom: 6 mm
Full watertight collision bulkheads (forward & aft)
Wide, shallow insulated keel with encapsulated lead ballast
Aluminum NACA-foil centerboard (10 mm flats / 8 mm skin) w/ Ertalon bearings
Twin aft fiberglass/epoxy daggerboards for helm balance in heavy seas
Solid aluminum standpipe through-hull
Sugar-scoop transom w/ four storage lockers
Aluminum arch w/ fold-down tender gantry
Synthetic teak cockpit & aft deck
Integral chain run from bow roller to mast-base anchor locker
Extensive thermal insulation (50 mm deck / 80 mm hull above WL)
— A proven expedition-grade platform for high-latitude cruising and global passagemaking.'

ACCOMMODATIONS

A bright, warm, ash-trimmed interior with excellent visibility from the raised deck-saloon — practical, secure, and ideal for long-term living aboard.

Forward Owner’s Cabin

Double berth
En-suite wash/shower room
Abundant lockers and storage

Twin Aft Cabins

Four single berths (two per cabin)
Opening ports + fixed hull windows
Generous storage, shelves, and ventilation

Heads

Forward wash/shower room
Aft head w/ Jabsco manual toilet, sink & shower

Deck Saloon / Main Cabin

Panoramic visibility from the raised saloon
Large L-shaped settee with table
Centerline bench w/ backrest
Heater ducting, fans, and excellent airflow
Stamskin upholstery throughout

Galley

Twin stainless steel sinks
GN-Espace 3-burner propane stove/oven
2 × 20-gallon Alloy US propane tanks
Large water-cooled Isotherm fridge + fitted 100L top-loader
Fresh & saltwater foot pumps
220V outlet + deep storage

CLIMATE & COMFORT

Refleks diesel drip stove w/ radiator circulation
Numerous Caframo Sirocco fans
Bug screens for companionway + four deck hatches

SAILS & RIGGING

Sparcraft Aluminum Mast & Boom

Double spreaders, flat (non-swept)
Carbon spinnaker/whisker pole on mast track
Rigid boom vang
All halyards, reefs & centerboard lines led to mast

Winches

(2) Lewmar 54 ST – cockpit
(2) Lewmar 50 ST – cockpit
(2) Lewmar 40 ST – mast
(1) Lewmar 30 ST – mast

Sail Inventory

2021 Hallett Dacron mainsail – 2 full + partial battens, 3 reefs
2017 Elvstrom mainsail – full batten, very good
2025 Hallett genoa (NEW) on Profurl furler
2017 Elvstrom genoa – fair
2019 Hallett self-tacking staysail/solent – torque-rope luff, Profurl Nex continuous furler
2017 Elvstrom asymmetric spinnaker w/ ATN sock – very good

MECHANICAL SYSTEMS

Nanni 60 hp Turbo Diesel

Major 2024–2025 refit — turnkey and expedition-ready.

New soft engine mounts (2024)
New transmission (2024)
New PSS shaft seal (2024)
New Vetus waterlock muffler (2025)
New prop shaft & cutless bearing (2025)
New 4-blade feathering Variprop (2025)
Spare fixed propeller
Dual Racor primary filters

ELECTRONICS & NAVIGATION

(2) NKE Multigraphic displays (doghouse & helm)
NKE autopilot w/ remote + MOB function
Furuno chartplotter
Furuno radar
Vesper WatchMate AIS (transceiver)
Icom DSC/VHF
Iridium phone external antenna
Full navigation station in doghouse — safe, protected watchkeeping

SAFETY EQUIPMENT

Ocean Signal Class II 406 EPIRB (NOAA exp. 10/26; battery 11/29)
Plastimo 6-person liferaft – next insp. 8/27
MOM 8-A — next insp. 8/26
Drogue (Galerider)
Multiple life vests incl. inflatable harnesses
Ditch kit, flares, 2 handheld VHFs
Electric bilge pumps: fore, aft, amidships
Manual pumps for engine bilge & central bilge
Fire extinguishers throughout (3 in living areas + 1 engine)

GROUND TACKLE

Lofrans electric windlass at mast base
Maxwell remote
100 m chain
100' rope rode w/ chain
Spade primary anchor
Spare Spade anchor
Fortress aluminum kedge
Stainless Northill folding seaplane anchor (rare)

TENDER & OUTBOARDS

Achilles 9' roll-up dinghy (aluminum floor; long oars)
2023 ePropulsion Spirit 1.0 Plus electric outboard (bags for leg & battery)
Tohatsu 5 hp 2-stroke + new tank

ADDITIONAL EQUIPMENT

Windpilot self-steering vane
Custom Gemini Canvas cockpit awning
Cockpit shower & folding table
Sea-Buoy 12V hookah diving rig
Milwaukee M-18 2-gal battery wet/dry vac (with 2 batteries + chargers)
Tools, spares, fenders, dock lines
Isotemp hot water tank w/ engine calorifier + saloon heat blower

SUMMARY

Lunacy is a superb example of the Boreal 47—an extremely capable, intelligently engineered, go-anywhere aluminum expedition yacht. With her recent mechanical upgrades, updated sails, proven systems, and fully equipped inventory, she is ready for high-latitude passagemaking, remote cruising, or extended liveaboard voyaging.

Twin Aft Daggerboards:

In addition to the centerboard, the Boreal 47 features two smaller, retractable daggerboards located in casings on either side of the shallow central rudder near the stern.

Helm Trim: These boards are a unique feature used to fine-tune the boat's handling characteristics. Dropping one of the boards can help balance the helm, reducing weather helm (the tendency to turn into the wind) when the main centerboard is loaded up.
Enhanced Stability: When both aft daggerboards are lowered, the boat gains significant directional stability, sailing more like a traditional long-keeled vessel. This allows the autopilot to steer more efficiently, even for long periods, which is ideal for ocean passages.
Maneuverability: With the boards raised, the boat becomes more responsive and behaves more like a lighter yacht, which is advantageous for maneuvering in confined waters like marinas or tight anchorages.
Construction: The aft boards are made of polyester (designed to "fuse," or shear away, in case of a major impact) within robust aluminum casings, ensuring durability and safety.

Disclaimer: The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Engine 1

Make:

Nanni

Model:

Turbo

Engine Type:

Inboard

Fuel Type:

Diesel

Disclaimer: The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.