Custom Explorer Yacht 48M

Avvertenza

Built by De Donge Shipyards in the Netherlands to commercial-grade standards. Steel hull 10 mm, steel superstructure 8 mm.

Bureau Veritas standards.

Commercial vessel engineered for reliability, accessibility, and structural durability, unmatched quality.

Systems designed for maintaince at sea. Redundancy where it matters. 

Long range voyaging. 7.000 + nautical miles range at 10 knots cruising speed, 79.000 liters total fuel capacity across two integrated hull tanks.

Designed to cross oceans.

She is currently under comprehensive refit (2025-2026) in Portugal, ready for any inspections. The right moment when the next owner can decide any modifications based on the final purpose. The refit project can be customized and tailored. Systems can be specified and lay out can be adjusted. 

This is not a finished project - it's a great opportunity to shape a vessel to precise requirements. 

Under full paint. New pictures will be available end of March. Two primer coatings will be finalized within March 2026 on the full hull. Full interiors are stripped out. 

N.B. Visuals represent the intended final configuration - the design direction and atmosphere upon completion. Fully customizable. 

LOA 48 m/157,5 ft

Beam 8 m/26.2 ft

Draft 2.15 m/7.1 ft

Gross tonnage 431 GT

Hull material Steel 10mm thickness 

Superstructure Steel 8mm thickness

Main engines Twin DEUTZ TBD 616-V16 diesel

Engine power 2 x 1080 hp/ 2 x 794.88 kW

Engine hours 150 since new

Cruising speed 12 kn

Maximum speed 15 kn

Range @cruising speed 7.000+ nautical miles 

Fuel capacity:

Fuel tank 1 Integrated in hull 42.000 liters

Fuel tank 2 integrated in hull 37.000 liters

Fuel filtration 2 x sets of 2 Parker Hannifin Racor 751000VMAM10

LAYOUT:

Guest cabins 6, guest heads 12

Guest capacity 12 

Crew cabins 5, crew heads 8/9

Crew capacity 8/9

Flag MALTA

Builder De Donge Shipyards

Build year 2008

Bureau Veritas Classification 

Status - Refit in progress 

Internet Starlink Maritime Sustem

Generator 100 kW newly installed

Steering Stand-alone Hydraulic System newly installed 

The 2025-2026 refit ecompasses structura, mechanical, and inetrior works orienated to bring the vessel into private ownership standrads. The refit includes:

- Structural hull and superstructure upgrades

- Complete systems modernization and redundancy improvements  

- Interior reconfiguration for private ownership standards 

- Navigation and communication system upgrade

- Fuel filtration system installation 

- Owner-orientated customization of layout and finishing 

Impressed Current Cathodic hull protection.

Being an Explorer Yacht, all crucial systems are built on very high level of redundancy and robust, "Bureau Veritas-grade" standards, defining a true and capable Explorer vessel, allowing her to operate efficiently for extended periods. This "safety-by-design" approach ensures that the failure of a single component—such as an engine, generator, or steering gear—does not render the vessel helpless.

All technical documentation is available upon request.  

The technical layout/GA has been elaborated in January 2026. 

461OB website 461oceanboulevard.nl/

List of equipment:

Main engines twin DEUTZ TBD 616 V16

Gearboxes ZF FW4400

Heat exchangers connected to main engines, model NRF

Main pump for hydraulic system PARKER PV180R1KNRD

Electrical motor connected to hydraulic back-up pump ROTOR 5.5 kW

Hydraulic electrical motor Marzocchi ALP2-D-16

Bow thruster propeller HRP HOLLAND 1001 TT

Bow thruster hydraulic motor PARKER 

Rudder Exalto

Hydraulic crane on wheelhouse Palfinger 

Auxiliary tender on wheelhouse NDM 4.40 with OB Yamaha 25HP

Primary fuel/water filters of fuel system Racor 900 FG

Fans, Multifan, ventilation ER 

Dirty oil pump 

Anchor winch 1 x Ridderinkhof with hydraulic motor OMSW 160

Anchor winch 2 x Damen Anchor Chain 

Anchor chain 2 x Damen Anchor Chain

Water pumps for water lubrication of bearings of stainless steel propeller shafts 2 x DBR Johnson USA

Bilge, ballast, deck wash in service space DBR Johnson USA

Portable water tanks 2 (25 and 25 m3)

Portable water, hydrophore in service space 2 x DBR Pentax CAM 100/0

Main fuel tanks volume 42 and 37 m3

Day fuel tanks. 3,7 and 3,7 m3

Fuel transfer pump in engine room, DBR Johnson Pump

Fuel oil purifier MIB 303, separation system Alfa Laval

Oil/water separator in engine room Blom & Voss Germany

Aerations on tanks Winel Holland

Steel door Winel Holland

WIndows Rafa Holland

Ventilators in engine room 2 x Multifan Holland

Valves for bilge, ballast/fuel system Econosto Holland

Airco system Heinen & Hopman

Sewage treatment plant in service spave BIO COMPACT KSA -S 

Fixed fire extinguishing system in ER TYCO FM200

fire detection control system in wheelhouse Minerva Marine T1008

Anti-corrosion system ME Impressed Current system AKBv2

VHF DSC 2 x Furuno FM 8800

Navigation light panel Aqua Signal

Navtex Furuno, N700A

INMARSAT C Furuno Felcom 15/SSAS

INMARSAT F Furuno felcom 15/SSAS

RADAR 2 x Furuno FAR-2117

GPS Furuno GP-90

AIS System Furuno FA 100

Autopilot Seapilot-75

Satellite compass Furuno SC50

Magnetic compass Kelvin Highes Observator, MK22

Echo sounder Furuno FCV-581L

Searchlight FRANCIS LITE300RG 5/Light

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