All welded steel DP1 twin screw offshore supply vessel / platform supply ship, US flag, built 1998, class ABS ✠A1 AMS, with LOA 64.0 m, B 14.0 m, max D 5.4 m, and design draft 4.10 m, DWT 1 600 t, GRT 1 395, configured with approx 5 440 sq ft clear deck space and USCG certificated for offshore supply operations in restricted ocean service. Propelled by twin GM / EMD 16-645-E6 diesel engines delivering approx 3 900 BHP through twin screw fixed pitch propulsion with DP1 capability, supported by extensive cargo systems including fuel capacity approx 109 428 gal, ballast approx 127 134 gal, potable water approx 34 440 gal, and liquid mud approx 3 300 bbl, currently afloat and laid up with class ABS ✠A1 AMS valid through 04 / 2026 and last drydock completed 04 / 2021.
HOS#577 | 1998 | 64m | DP1 Twin Screw OSV | For P&C Sale
All welded steel DP1 twin screw offshore supply vessel / platform supply ship, US flag, built 12 / 1998, class ABS ✠A1 AMS, presently afloat and laid up, configured for offshore supply operations in restricted US waters, with LOA 64.0 m, B 14.0 m, max D 5.4 m, design max draft 4.10 m and DWT 1 600 t, GRT 1 395 and NRT N / A, designed with approx 5 440 sq ft clear deck area and general OSV hull form optimized for cargo carriage and station keeping support.
Propulsion is twin screw diesel mechanical arrangement driven by 2 × GM / EMD 16-645-E6 LH 16-cyl marine diesel engines, delivering combined approx 3 900 BHP, arranged through 2 × Falk reduction gears DPC 20235 ratio 3.051:1 driving 2 × stainless steel fixed pitch 4-blade propellers approx 90 in × 70 in, supported by twin shaft lines approx 8 in steel shafts, twin free hanging rudders and bow thruster system approx 48 in tunnel type for low speed maneuvering and DP1 station keeping capability via integrated control system. Main engine installation is supported by auxiliary gensets 2 × ~160 kW and additional auxiliary engines 2 × 125 kW AC providing hotel and mission loads, with electrical distribution supporting deck machinery, navigation and cargo handling systems.
Cargo and utility systems include fuel oil capacity approx 109 428 gal in multiple double bottom tanks, day fuel tanks approx 20 052 gal, potable water capacity approx 34 440 gal, ballast water capacity approx 127 134 gal, liquid mud capacity approx 3 300 bbl across 6 tanks, bulk mud approx 8 000 cu ft across 5 tanks, lube oil approx 2 196 gal, hydraulic oil approx 1 097 gal, gear oil approx 1 097 gal and dirty oil approx 2 196 gal, supported by fuel transfer pumps approx 4 in centrifugal 25 HP and 1½ in PD pump 3 HP, bilge and ballast pumps 2 × 3 in centrifugal 30 HP, liquid mud pumping via 2 × 6 in × 5 in × 14 in Mission Magnum / Detroit 671 units, and freshwater systems tied to dual bladder tank arrangement.
Hull structure is all welded steel construction utilizing plate thickness ranges 3/8 in, 1/2 in and 3/4 in, with welded steel superstructure approx 1/4 in to 5/16 in plate, transverse and longitudinal framing system with 13 transverse and 8 longitudinal bulkheads and approx 36 compartments, rolling chocks approx 14 in × 1 in steel flat bar, and chine hull form with bow and square stern configuration. Coating condition ranges approx 80 % external hull, 90 % superstructure and 80 % main deck plating, with noted localized shell deformation and corrosion activity consistent with aging offshore service and partial repair history.
Accommodation is arranged for approx 26 persons POB under USCG certification limits, with multiple bunkroom configurations including 2-man, 4-man and 6-man cabins, serviced by galley with 6-burner electric stove, walk-in refrigeration and freezer spaces, HVAC via Carrier units approx 3 ton and 5 ton systems, and internal finishes comprising plywood, FRP and marlite paneling. Sanitary spaces include multiple heads and showers with noted wear items consistent with operational lifecycle.
Navigation and communication systems include Furuno radar suite, Furuno GPS GP-39, NAVTEX NX-300, depth sounder FCV-628, AIS Furuno FA-150, GMDSS MF / HF and VHF systems, gyro compass Sperry SR-180 MK-1, magnetic compass, autopilot systems Navitron / Simrad Robertson IS11, SSB radio and DSC terminals, EPIRB 406 MHz ACR unit (expired registration noted), SART units and auxiliary satellite communication system. DP1 capability is provided via Beier IVCS4000 DP-SS single station system supporting manual and assisted station keeping operations.
Safety systems include fixed CO₂ fire suppression system approx 24 × 100 lb bottles serving engine room and thruster spaces, multiple fire pumps and hydrant stations approx 11 hose stations, portable extinguishers distributed throughout vessel, life rafts 4 × Viking 25-person units, approx 40 Type I life jackets, 12 life rings, line throwing appliances, SCBA set, fire alarm system Cerberus Pyrotronics with multi-zone paneling and general alarm system. Lifesaving appliances and emergency lighting systems are fitted throughout accommodation and machinery spaces, with noted deficiencies and inoperable units consistent with inspection findings.
Operational status is afloat and not in active service, with last drydock 04 / 2021 and next drydock overdue per USCG requirement, ABS loadline and class validity through 04 / 2026, and inspection condition indicating mixed operational readiness with machinery oil contamination concerns, coating degradation, minor hull indentation zones, and general maintenance backlog affecting immediate readiness without corrective works. Fair market valuation assessment places vessel in mid-range aged DP1 OSV category with replacement cost significantly higher than depreciated market value due to age, configuration and compliance condition.
Admiralty Disclosure and Compliance Notice:
All full/ original Vessel (“Asset”) specifications, documentation, and related ownership details shall be disclosed strictly and exclusively Only to Qualified, Named End Buyers or Chartering Parties. Such disclosure shall be contingent upon the prior execution and submission of a duly completed Non-Circumvention, Non-Disclosure Agreement (NCNDA), together with a verifiable Bank Comfort Letter (BCL) issued by a recognized and reputable international FDIC financial institution – confirming the qualified Buyers or Chartering Party financial capabilities.
Horizon Offshore Services, together with its affiliated and subsidiary entities under the authority of its Board of Directors, conducts all ship sale, purchase and/ or chartering advisory activities in accordance with the highest Admiralty English & U.S. Laws standards of professional integrity, transparency, and due diligence to ensure a secure and compliant BIMCO/ ICS transaction process.
Disclaimer:
HOS 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 verify all details, as per Buyer desires (project/ scopes of work) in due course.
This vessel is offered subject to availability, price change, or withdrawal without notice.










