What kind of ship is OCEAN STALWART?

OCEAN STALWART is a research vessel sailing under the flag of Vanuatu, built in 1984 by Tacoma Boatbuilding Company. The vessel is 68.3 m long and has a gross tonnage of 1,751.

What sanctions and inspection records does Voydar hold for OCEAN STALWART?

Voydar has no matched sanctions record displayed for OCEAN STALWART 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 OCEAN STALWART. Missing records do not establish whether the ship has been detained.

OCEAN STALWART

Research vessel · Vanuatu · built 1984 · AIS Class A

IMO8835516MMSI576785000Call signYJRG8Last AIS position Sep 24, 2026, 13:06 UTC

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In short

OCEAN STALWART (Research vessel, Vanuatu flag) was last seen on AIS on Sep 24, 2026, 13:06 UTC, not moving, near Belem (South Atlantic Ocean). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Its crew-entered AIS destination is BELEM; its reported draught is 5.5 m (voyage report via AISstream.io global terrestrial AIS, received Sep 24, 2026, 11:24 UTC).

Vessel type: Research vessel
Flag: Vanuatu
Year built: 1984
Gross tonnage: 1,751
Size (length × beam): 68 m
Registered owner: —

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Photo of USNS Stalwart — Photo: US Navy · Licence: Public domain · via Wikimedia Commons

Last reported position

received Sep 24, 2026, 13:06 UTC

Position: 1.438° S, 48.4949° W
Area: South Atlantic Ocean
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 0 kn
Course: 107°
Heading: 12°

1.438° S, 48.4949° W

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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: OCEAN STALWART
IMO numberWhat is an IMO number?: 8835516
MMSIWhat is an MMSI?: 576785000
Call signWhat is a call sign?: YJRG8
Flag: Vanuatu
Vessel type: Research vessel
AIS ship type: Cargo (hazardous cat. A)
Gross tonnageGross tonnage vs deadweight: 1,751
Length overall: 68.3 m
Beam: —
Year built: 1984

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.

Operator: United States Navy
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Builder: Tacoma Boatbuilding Company
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
Dec 1, 2011	Reported departure from JACKSONVILLE HARBOR, FLAuthority-reported	USACE foreign traffic vessel entrances & clearances
Nov 23, 2011	Reported departure from JACKSONVILLE HARBOR, FLAuthority-reported	USACE foreign traffic vessel entrances & clearances
Oct 7, 2011	Reported arrival at JACKSONVILLE HARBOR, FLAuthority-reported	USACE foreign traffic vessel entrances & clearances

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.

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
JACKSONVILLE HARBOR, FL	Departure	Dec 1, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances
JACKSONVILLE HARBOR, FL	Departure	Nov 23, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances
JACKSONVILLE HARBOR, FL	Arrival	Oct 7, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: October 7, 2011.

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

About OCEAN STALWART

USNS Stalwart (T-AGOS-1) was a Modified Tactical Auxiliary General Ocean Surveillance Ship and the lead ship of her class. Stalwart was laid down on 3 November 1982 by the Tacoma Boat Building Company. She was launched on 11 July 1983 and entered service with the United States Military Sealift Command on 12 April 1984. The ship served as an anti-submarine surveillance ship during the Cold War, then as an anti-drug smuggling vessel as part of the United States' war on drugs. Stalwart left military service on 15 November 2002, and was struck from the Naval Vessel Register on 2 December 2002. She was donated to the State University of New York Maritime College (SUNY-Maritime), and was renamed SUNY Maritime. She was sold in 2011 to Stabbert Maritime and sent to Norfolk Shipyards for restoration and renamed R/V Ocean Stalwart.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is OCEAN STALWART now?: OCEAN STALWART (Research vessel, Vanuatu flag) was last seen on AIS on Sep 24, 2026, 13:06 UTC, not moving, near Belem (South Atlantic Ocean). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was BELEM (voyage report via AISstream.io global terrestrial AIS, received Sep 24, 2026, 11:24 UTC). This report does not confirm the ship’s current route.
What kind of ship is OCEAN STALWART?: OCEAN STALWART is a research vessel sailing under the flag of Vanuatu, built in 1984 by Tacoma Boatbuilding Company. The vessel is 68.3 m long and has a gross tonnage of 1,751.
What sanctions and inspection records does Voydar hold for OCEAN STALWART?: Voydar has no matched sanctions record displayed for OCEAN STALWART 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 OCEAN STALWART. Missing records do not establish whether the ship has been detained.

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