What kind of ship is Stirling Castle?

Stirling Castle is a naval vessel sailing under the flag of United Kingdom, built in 2013 by Trosvik Verksted. The vessel is 97 m long with a beam of 20 m and has a gross tonnage of 5,840.

What sanctions and inspection records does Voydar hold for Stirling Castle?

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

Stirling Castle

Naval vessel · United Kingdom · built 2013 · AIS Class A

IMO9630535MMSI232047057Call signGMHCLast AIS position Sep 29, 2026, 17:08 UTC

Open in Terminal

In short

Stirling Castle (Naval vessel, United Kingdom flag) was last seen on AIS on Sep 29, 2026, 17:08 UTC, moored, near Cowes (English Channel). 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 SEA (voyage report via AISstream.io global terrestrial AIS, received Sep 29, 2026, 17:09 UTC). Its last detected port call was at Rock Ferry: arrived Jul 11, 2026, left Jul 24, 2026.

Vessel type: Naval vessel
Flag: United Kingdom
Year built: 2013
Gross tonnage: 5,840
Size (length × beam): 97 m × 20 m
Registered owner: —

Watch this ship

Get an email when Stirling Castle arrives or leaves port, changes destination, name, flag or owner, or is sanctioned, detained or named in an official release.

We email you a link and a code. That creates a free account, no password or card, and follows Stirling Castle.

Free account, no card: follow up to 5 ships and ports. Plus follows 50, Pro 500.

By continuing you accept the Terms and the Privacy policy.

Last reported position

received Sep 29, 2026, 17:08 UTC

Position: 50.8072° N, 1.1045° W
Area: English Channel
StatusWhat do AIS statuses mean?: Moored
Speed: 0 kn
Course: 82°
Heading: 91°

50.8072° N, 1.1045° W

Open the full live map →

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.

A year of history in the Terminal (Plus) · the full archive since June 1, 2026 (Pro)

Try the live demo, no sign-up

Identity & particulars

Name: Stirling Castle
IMO numberWhat is an IMO number?: 9630535
MMSIWhat is an MMSI?: 232047057
Call signWhat is a call sign?: GMHC
Flag: United Kingdom
Vessel type: Naval vessel
AIS ship type: Military ops
Gross tonnageGross tonnage vs deadweight: 5,840
Length overall: 97 m
Beam: 20 m
Year built: 2013

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: Royal Fleet Auxiliary
Source: Wikidata · since 2023 · reported · confidence 0.8 · retrieved Sep 22, 2026
Island Offshore Management
Source: Wikidata · since 2013 · reported · confidence 0.8 · retrieved Sep 22, 2026
Builder: Trosvik Verksted
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 24, 2026, 16:48 UTC	Left Rock FerryAIS-detected	Voydar port-call detector (AIS geofence)
Jul 11, 2026, 18:21 UTC	Arrived at Rock FerryAIS-detected	Voydar port-call detector (AIS geofence)
during 2023	Operator: Royal Fleet Auxiliary (previously Island Offshore Management)	Voydar relationship-change derivation (derived by Voydar from 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.

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.

Detected from AIS AIS-detected

Port	Arrived	Departed	Time in port
Rock Ferry GBRFR	Jul 11, 2026, 18:21 UTC	Jul 24, 2026, 16:48 UTC	12 d 22 h

Detected by Voydar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.

About Stirling Castle

HMS Stirling Castle (formerly RFA Stirling Castle) is a ship of the Royal Navy. Originally acquired by the Royal Fleet Auxiliary (RFA), the ship was transferred to, and commissioned by, the Royal Navy in July 2025. After being acquired for the RFA in 2023, the ship entered drydock at HMNB Devonport, Plymouth for modification into a trials platform for autonomous minehunting systems that are to operate from a larger mother ship. The ship was formerly named Island Crown, and used as an offshore supply vessel operated by Island Offshore. The vessel was sold to the Ministry of Defence in January 2023 for £40 million. Stirling Castle is one of two new commercial vessels acquired for the Royal Fleet Auxiliary in 2023, the other being RFA Proteus, a multi-role ocean surveillance ship to protect seabed infrastructure and communications.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is Stirling Castle now?: Stirling Castle (Naval vessel, United Kingdom flag) was last seen on AIS on Sep 29, 2026, 17:08 UTC, moored, near Cowes (English Channel). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was SEA (voyage report via AISstream.io global terrestrial AIS, received Sep 29, 2026, 17:09 UTC). This report does not confirm the ship’s current route.
What kind of ship is Stirling Castle?: Stirling Castle is a naval vessel sailing under the flag of United Kingdom, built in 2013 by Trosvik Verksted. The vessel is 97 m long with a beam of 20 m and has a gross tonnage of 5,840.
What sanctions and inspection records does Voydar hold for Stirling Castle?: Voydar has no matched sanctions record displayed for Stirling Castle from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for Stirling Castle. Missing records do not establish whether the ship has been detained.

Use this data

This page is also available as JSON, free, with the source and licence of every section. Sections whose sources do not permit redistribution are listed as withheld.

GET /api/v1/vessels/9630535

View JSON API documentationFree without a key for occasional use; use an API key for more.

Follow by RSS Open data

Using this data in code?

Every account gets a personal API allowance: 2,500 credits a month free, 25,000 with Pro. Pro adds internal business use; API plans add building the data into your own products.

See plans