What kind of ship is W-NAUTILUS?

W-NAUTILUS is a bulk carrier sailing under the flag of Liberia, built in 2011 by Taizhou Kouan Shipbuilding Co Ltd. The vessel is 229 m long with a beam of 38 m and has a gross tonnage of 51,239.

Who is recorded as the owner or manager of W-NAUTILUS?

W MARINE INC is recorded as ISM manager for W-NAUTILUS (source: EU MRV (THETIS-MRV) emissions; reporting years 2024–2025). This source record does not independently confirm today’s ownership or management.

What sanctions and inspection records does Voydar hold for W-NAUTILUS?

Voydar has no matched sanctions record displayed for W-NAUTILUS from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for W-NAUTILUS. Missing records do not establish whether the ship has been detained.

W-NAUTILUS

Bulk carrier · Liberia · built 2011 · AIS Class A

IMO9537915MMSI636017030Call signA8XR3Last AIS position Sep 13, 2026, 14:22 UTC

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In short

W-NAUTILUS (Bulk carrier, Liberia flag) was last seen on AIS on Sep 13, 2026, 14:22 UTC, under way at 9.8 kn, near Port Dickson (Strait of Malacca). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. ISM manager: W MARINE INC (source: EU MRV (THETIS-MRV) emissions, reporting years 2024–2025).

Vessel type: Bulk carrier
Flag: Liberia
Year built: 2011
Gross tonnage: 51,239
Size (length × beam): 229 m × 38 m
ISM manager: W MARINE INC

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Last reported position

received Sep 13, 2026, 14:22 UTC

Position: 2.4937° N, 101.6136° E
Area: Strait of Malacca
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 9.8 kn
Course: 306°
Heading: 305°

2.4937° N, 101.6136° E

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Voydar detected no port call in the last 30 days.

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

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Identity & particulars

Name: W-NAUTILUS
IMO numberWhat is an IMO number?: 9537915
MMSIWhat is an MMSI?: 636017030
Call signWhat is a call sign?: A8XR3
Flag: Liberia
Vessel type: Bulk carrier
AIS ship type: Cargo
Gross tonnageGross tonnage vs deadweight: 51,239
Deadweight (DWT): Source: Wikidata, record Q52380086. Added to Voydar on September 23, 2026. Licence: CC0 1.0.93,099 t
Length overall: 229 m
Beam: 38 m
Year built: 2011

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

ISM manager: W MARINE INC
Source: EU MRV (THETIS-MRV) emissions · reporting years 2024–2025 · reported · confidence 0.9 · retrieved Sep 28, 2026
Builder: Taizhou Kouan Shipbuilding Co Ltd
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.

Date	Event	Source
Jul 15, 2015	Reported departure from MobileAuthority-reported	USACE foreign traffic vessel entrances & clearances
Jul 6, 2015	Reported arrival at MobileAuthority-reported	USACE foreign traffic vessel entrances & clearances
May 18, 2015	Reported departure from ELIZABETH RIVER, VAAuthority-reported	USACE foreign traffic vessel entrances & clearances
Jan 1, 2011	Former name: Dorian Schulte	Wikidata

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Former and other names

Names attested for this ship other than its current name.

Name	Evidence	Date	Source
Dorian Schulte	Former name	Jan 1, 2011	Wikidata
Jupiter N	Former name	—	Wikidata

A sanctions list's date is the earliest date the list shows the name, not when the ship took it. A name on a list is shown as a former name only where AIS shows the ship using another name after that date; otherwise it is listed as a name the list uses. AIS name changes are dated when Voydar saw them.

Source: Wikidata. Licence: CC0 1.0.

Emissions & fuel consumption

Independently verified annual figures reported under the EU MRV regulation — public environmental data the incumbents don't surface.

Year	CO₂ emitted	Fuel burned	Time at sea	CO₂ / n mile
2018	5,372 t	1,720 t	57 days	374 kg
2019	9,320 t	2,966 t	106 days	352 kg
2020	2,375 t	761 t	27 days	334 kg
2022	7,850 t	2,491 t	91 days	353 kg
2024	0 t	0 t	0 days	—
2025	0 t	0 t	0 days	—

Technical efficiency: EEXI (3.28 gCO₂/t·nm). Source: European Commission / EMSA THETIS-MRV (EU Regulation 2015/757). Covers voyages to, from and within the EU/EEA.

Port calls

Two kinds of evidence, kept apart: calls Voydar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
Mobile USMOB	Departure	Jul 15, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
Mobile USMOB	Arrival	Jul 6, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER, VA	Departure	May 18, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER, VA	Arrival	May 14, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
PORT OF PLAQUEMINES, LA	Departure	Nov 16, 2012(date only)	—	USACE foreign traffic vessel entrances & clearances
PORT OF PLAQUEMINES, LA	Arrival	Nov 15, 2012(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER, VA	Departure	Jan 26, 2012(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER, VA	Arrival	Jan 24, 2012(date only)	—	USACE foreign traffic vessel entrances & clearances
Mobile USMOB	Departure	Dec 16, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances
Mobile USMOB	Arrival	Dec 14, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances
PORT OF SOUTH LOUISIANA (LA)	Departure	Nov 30, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances
PORT OF SOUTH LOUISIANA (LA)	Arrival	Nov 26, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: November 26, 2011.

Source: US Army Corps of Engineers, Waterborne Commerce Statistics Center (US CBP entrance/clearance records). Licence: US Government work — public domain.

Frequently asked questions

Where is W-NAUTILUS now?: W-NAUTILUS (Bulk carrier, Liberia flag) was last seen on AIS on Sep 13, 2026, 14:22 UTC, under way at 9.8 kn, near Port Dickson (Strait of Malacca). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report.
What kind of ship is W-NAUTILUS?: W-NAUTILUS is a bulk carrier sailing under the flag of Liberia, built in 2011 by Taizhou Kouan Shipbuilding Co Ltd. The vessel is 229 m long with a beam of 38 m and has a gross tonnage of 51,239.
Who is recorded as the owner or manager of W-NAUTILUS?: W MARINE INC is recorded as ISM manager for W-NAUTILUS (source: EU MRV (THETIS-MRV) emissions; reporting years 2024–2025). This source record does not independently confirm today’s ownership or management.
What sanctions and inspection records does Voydar hold for W-NAUTILUS?: Voydar has no matched sanctions record displayed for W-NAUTILUS from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for W-NAUTILUS. Missing records do not establish whether the ship has been detained.

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