Designed by Marc Lombard and celebrated for its balance of speed, comfort, and seaworthiness, the Nautitech 44 Open has become a favourite among sailors who want to go far — and enjoy the journey. Mackensea takes that foundation and elevates it.

Single owner - Never Chartered - As New Condition

This Owner’s Version blends the signature inside/outside Open concept with a beautifully executed light‑wood interior and the rare SmartRoom® utility space. Every upgrade was chosen with long‑range independence in mind: a powerful lithium bank, nearly two kilowatts of solar, a high‑output watermaker, upgraded 50 hp engines, and a full suite of sails for every point of wind.

Life aboard is effortless. The cockpit and saloon merge into a single social space. The owner’s suite is bright, quiet, and beautifully finished. Refrigeration is abundant, connectivity is global, and the systems are modern, efficient, and easy to manage.

Mackensea isn’t just equipped for bluewater cruising - she’s designed for it.

Yacht Sales West is well poised to assist you start your sailing adventure with extensive offshore experience and as authorized Nautitech dealers

Name.............................................. Mackensea

Year........................................................... 2024

Builder.......................... Nautitech Catamarans

Designer.................................... Marc Lombard

LOA........................................................... 43’8”

Beam......................................................... 24’2”

Draft............................................................ 4’9”

Displacement................................... 24,045 lbs

Ballast.................................................... None !

Sail Area ............................................ 1,142 ft2

Hull                                                    Fiberglass

Deck...................................... Cored Fiberglass

Steering........................................ Dual Wheels

Keel.............................................................. Fin

Rudder.................................................... Spade

Fuel..................................................... 132 gals

Water................................................... 158 gals

Hot Water................................................... Yes

CONSTRUCTION

• Light and rigid construction with vacuum infusion technology.  Vinylester resin construction
• Bulkheads are bonded in and also use sandwich infusion for robustness and lightness.
• All coring is divinycell - no balsa, unlike some other popular brands !
• Single‑shot infused hull with structural bulkheads laminated in‑mold.
• Inverted bows and stepped chines for performance and comfort
• High aspect fin keels and low boom provide great upwind performance.
• Watertight bulkheads fore and aft.

COCKPIT

• The expansive cockpit is often the main living area on these catamarans.  With the helms on the quarters for great sailing and visibility, there is a large living area in the cockpit with settees and a large table.  A perfect entertaining area.
• From the helms to the galley and saloon everything is on one level and in sight – great for safety and comfort.
• The helm positions provide great visibility of the water and the sails with a tight linkage with the rudders.  The preferred solutions for sailors. Each helm is protected by its own bimini. Synthetic teak in the cockpit and the aft platforms
• Upgraded teak cockpit table
• Optional Foredeck lounge – bar and storage box with integrated cushions. Pop-up “secret” light
• Full set of cockpit cushions
• Full cockpit enclosure
• Hot and cold cockpit shower

INTERIOR

• Owner’s Version to port with guest cabin and Utility “Smartroom” to Starboard.
• Large cockpit doors create an open area between the saloon and the cockpit.  The spacious cockpit and luxurious saloon become one expansive living space.
• The Nautitech center “bar” is a feature of the saloon that not only provides even more storage and preparation space but a convenient bracing point for offshore sailing
• To port is another settee and lowerable coffee table.   Saloon table converts to another berth – great for night watches as well. 32” TV integrated into the saloon bar.
• The forward-facing chart table has great visibility and comfortable place to stand night watches
• To starboard is the large seaworthy galley.  With the large opening doors there is an easy flow to and from the galley and the cockpit
• Luxurious master suite on the port side: Queen sized bed aft with a custom desk midships and the large bathroom forward.  Large walk-in shower all the way forward and separate toilet area with sink forward of midships.
• Utility “Smartroom” – with 7kg washer/dryer and 108l freezer and extensive storage and bench space.  Access to the starboard forepeak through the water tight bulkhead.
• Aft and starboard is the guest cabin with the same large bed as in the master suite.  Extensive storage.
• Desirable “light wood” option
• External sunshades for the saloon with opening for the hatches.
• Blinds for all windows in the hulls
• Upgraded mattresses and custom bedding in each cabin
• USB charging and fans throughout

GALLEY

• Great seaworthy galley with lots of ventilation, storage and counter space.  Easy access to the cockpit.
• Extensive refrigeration – 2 x fridge (144l) and freezer (70l) in galley, plus a large freezer (108l)  in the Smartroom and fridge in the cockpit.
• Large LPG three-burner stove and oven.
• Microwave

MECHANICAL

• 2x Volvo Penta D2-50F 50hp engine – upgraded power !
• 632/622  hrs
• Easy access to the engines
• Folding propellers – fast under sail !
• Onan 7kW generator

ELECTRICAL + PLUMBING

• Fully equipped for off-grid living
• Custom upgraded Lithium house bank - 1020 amp-hrs
• Large 1840 W solar on hardtop and davits.  Hard top solar in the process of being updated. MPPT charge controllers.
• Upgraded Victron Inverter/Charger 3000W/120 amp 
• Upgraded lighting throughout including courtesy lights and LED spreader lights
• Aquabase 105l/hr 12v watermaker
• Electric toilets with freshwater flush x 2

INSTRUMENTS

• Full B&G electronics suite
• 9” B&G chartplotter at each helm plus a 12” chartplotter at the forward facing chart table
• B&G Triton multifunction display at each helm
• B&G Autopilot control at each helm
• B&G Halo 20+ digital radar
• B&G VHF with integrated AIS transmitter/receiver and B&G wireless VHF remote
• B&G Forwardscan forward looking sonar
• B&G mast mounted forward looking camera integrated into the chartplotters
• Primary Satcom: Starlink Maritime
• Backup Satcom: Iridium Go!
• Fusion stereo system with zone control

SAILS & CANVAS

• A comprehensive sail suite optimized for blue‑water sailing
• Square top fully battened mainsail with stackpack and lazy jacks
• Self-tacking jib
• Gennaker on a continuous line furler
• Code zero on continuous line furler
• Oxley Levante Parasailor with custom rigging for stress free tradewind sailing

RIGGING + DECK GEAR

• Bowsprit – removable for moorage.
• Upgraded running rigging in Dynema or Technora
• Upgraded winches including two electric winches – easy !
• Davits for the tender

ADDITIONAL EQUIPMENT

• Windlass: Electric Lewmar
• Anchor: Upgraded 30kg Spade anchor with Wasi Powerball swivel
• Rode: 70m of 10mm chain
• Tender: Highfield 320 with bespoke tube covers.
• Outboard: Honda 15hp
• Extensive spares
• Liferaft: 8 pax ISO 9650-1 certified with grab bag
• Full ARC compliant safety equipment.

MAINTENANCE

• Last haul-out and anti-fouling: July 2025
• Last engine oil change: July 2025
• Detailed maintenance logs and manuals

Listed by Max Shaw.

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.