What kind of ship is Sisu?

Sisu is an icebreaker sailing under the flag of Finland, built in 1976 by Wärtsilä. The vessel is 101.6 m long with a beam of 23.8 m and has a gross tonnage of 7,525.

What sanctions and inspection records does Voydar hold for Sisu?

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

Sisu

Icebreaker · Finland · built 1976 · AIS Class A

IMO7359656MMSI230289000Call signOHMWLast AIS position Sep 18, 2026, 09:59 UTC

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In short

Sisu (Icebreaker, Finland flag) was last seen on AIS on Sep 18, 2026, 09:59 UTC, moored, in the Baltic Sea. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report.

Vessel type: Icebreaker
Flag: Finland
Year built: 1976
Gross tonnage: 7,525
Size (length × beam): 102 m × 24 m
Registered owner: —

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Photo of Sisu — Photo: WorldIslandInfo.com · Licence: CC BY 2.0 · via Wikimedia Commons

Last reported position

received Sep 18, 2026, 09:59 UTC

Position: 60.1696° N, 24.9726° E
Area: Baltic Sea
StatusWhat do AIS statuses mean?: Moored
Speed: 0 kn
Course: 0°
Heading: —

60.1696° N, 24.9726° 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: Sisu
IMO numberWhat is an IMO number?: 7359656
MMSIWhat is an MMSI?: 230289000
Call signWhat is a call sign?: OHMW
Flag: Finland
Vessel type: Icebreaker
AIS ship type: Other
Gross tonnageGross tonnage vs deadweight: 7,525
Length overall: 101.6 m
Beam: 23.8 m
Year built: 1976

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: Finnish Maritime Administration
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Builder: Wärtsilä
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

About Sisu

Sisu (Callsign OHMW) is a Finnish icebreaker of the Atle class built in 1976 in Helsinki. Her sister, Urho, is nearly identical. Sisu has accommodations fitted with classrooms for maritime students. Urho's accommodations are reserved for public relations uses.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is Sisu now?: Sisu (Icebreaker, Finland flag) was last seen on AIS on Sep 18, 2026, 09:59 UTC, moored, in the Baltic Sea. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report.
What kind of ship is Sisu?: Sisu is an icebreaker sailing under the flag of Finland, built in 1976 by Wärtsilä. The vessel is 101.6 m long with a beam of 23.8 m and has a gross tonnage of 7,525.
What sanctions and inspection records does Voydar hold for Sisu?: Voydar has no matched sanctions record displayed for Sisu 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 Sisu. Missing records do not establish whether the ship has been detained.

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