Maaskant 45.6m Refitted Expedition Motor Yacht for Sale in Brunswick, United States

This 45.6-metre expedition motor yacht offers a serious long-range ownership platform for buyers who value engineering substance, offshore reliability, and modernised capability over superficial styling alone. Originally delivered in 1988 and extensively refitted in 2023, she has been upgraded into a robust explorer with genuine transoceanic credentials. Built by a respected Northern European yard known for offshore and workboat construction, she combines a steel hull, aluminium superstructure, and full-displacement form to deliver the kind of strength, efficiency, and seakeeping confidence expected from a vessel intended for extended global cruising. Now lying in Brunswick, United States, she stands out as a rare opportunity to secure a commercially influenced explorer yacht with substantial volume, practical deck arrangements, and a refit programme focused on structural integrity and long-term operability.

Construction, Hull Form & Bluewater Credentials
With an overall length of 45.6 metres, a 42-metre waterline length, a 9-metre beam, and a deep 5.1-metre draft, this yacht has been proportioned for stability, predictable tracking, and comfortable passagemaking in demanding sea states. Her internal volume of approximately 499 GT is distributed across three decks, creating generous room for machinery separation, tankage, crew circulation, guest comfort, and long-voyage storage. Hull plating of approximately 10 mm above and 15 mm below the waterline reflects standards more commonly associated with commercial vessels than conventional pleasure yachts, reinforcing her appeal to owners planning ambitious itineraries. Structural reinforcements completed during the 2023 refit further enhanced fairness and rigidity, while teak-laid steel decks add both durability and a refined finish. The displacement hull prioritises safety, range, and comfort rather than speed alone, making her especially well suited to autonomous world cruising, remote expedition use, and prolonged ownership away from major marina infrastructure.

Hybrid Diesel-Electric Propulsion & Engineering
The yacht’s hybrid diesel-electric architecture has been arranged to deliver redundancy, efficiency, and operational flexibility. Propulsion is provided through a variable-frequency electric motor rated at approximately 1,300 kW, or around 2,000 horsepower, driving a single heavy-duty shaft and propeller package built for dependable continuous service. Electrical generation comes from three Volvo D16 generators, each rated at 585 kW and compliant with IMO Tier III requirements, supported by a Volvo D5 auxiliary generator of 92 kW for reduced-demand operations. At an economical cruising speed of around 9 knots, she offers an estimated range of approximately 9,000 nautical miles, supported by a substantial fuel capacity of around 154,000 litres. Trial speeds have been reported between 12 and 14 knots. The system is also prepared for the future integration of a lithium-ion battery bank up to 2 MW, opening the door for advanced load management and potential silent manoeuvring capability. Bow and stern thrusters of 100 kW each enhance close-quarters control, while a 90 kVA 60 Hz shore transformer allows broad international shore power compatibility.

Bridge Systems, Safety & Technical Access
The machinery arrangement spans multiple levels with logical zoning, giving engineers and surveyors clear access to generators, switchboards, exhaust systems, cooling circuits, filtration assemblies, control panels, and associated service points. The bridge is configured to professional standards and fitted for offshore operation with radar arrays, GPS, AIS, autopilot, chart plotting systems, sonar capability, and GMDSS A3 communications. Fire suppression systems, certified lifesaving appliances, and regularly maintained safety gear support secure operation well beyond coastal waters. For an owner seeking a yacht with real mechanical depth rather than superficial convenience, this vessel presents a compelling technical proposition.

Guest Accommodation & Interior Arrangement
Accommodation is arranged for up to 10 guests in 5 cabins, complemented by 5 crew cabins for up to 9 crew members. The full-beam owner’s suite is located on the lower deck and benefits from notable headroom, overhead glazing for natural light, a spacious en-suite bathroom with separate facilities, generous storage, and a private lounge or office area suitable for extended time onboard. Four additional guest cabins have been arranged to maximise privacy and comfort, each with en-suite facilities and multiple portholes for natural ventilation and daylight. Interior finishes favour practicality, acoustic comfort, and durability, including floating floor systems and vibration-dampening construction to minimise machinery transfer into guest spaces. The main saloon and library create inviting communal areas with panoramic glazing, while recessed lighting adds a warm evening ambience. A fully equipped professional galley, paired with significant cold storage and durable preparation areas, is configured for self-sufficient long-range use.

Crew Functionality, Deck Life & Exploration Equipment
Crew areas are separated from guest spaces to preserve privacy and efficient onboard workflow, and include a dedicated crew mess, crew galley facilities, and direct deck access. Exterior spaces have been designed to balance expedition utility with owner enjoyment. Twin anchors of approximately 360 kg each provide secure holding power, while reinforced midship boarding arrangements improve safe access and structural rigidity. Numerous skylights on the upper deck bring natural light into the interior while maintaining strength. Guest-focused features include sheltered al fresco dining under a hardtop, lounging zones, an exterior bar, and a barbecue station for entertaining at anchor. Tender and adventure support is excellent, with onboard crane systems handling a 7-metre electric tender, a 5.1-metre inflatable tender, and a 3.3-metre RIB, further complemented by a dive compressor for underwater exploration. Onboard amenities include air conditioning, gym equipment, satellite television, Starlink connectivity, Wi-Fi, and an outdoor cinema arrangement.

Registry, Documentation & Purchase Position
Registered under the Marshall Islands flag, the yacht benefits from an established international ownership framework familiar to global buyers and their advisors. Refit documentation, machinery records, and technical information are available for review, supporting a transparent due diligence process. Inspections, independent surveys, and sea trials can be arranged through a structured purchase process with escrow-secured deposit arrangements and standard closing procedures. For owners seeking a refitted, ocean-capable platform with strong bones, significant autonomy, and authentic expedition intent, this Maaskant-built 45.6-metre explorer is a standout acquisition candidate.

Enquire for Full Purchase Details
If you are looking for a serious explorer yacht with commercial-grade construction, hybrid-ready engineering, and the range to cruise globally with confidence, this 45.6m refitted expedition motor yacht deserves close attention. Request the full specification, refit file, inspection availability, and purchase terms to move forward with survey and sea trial arrangements.