Sisu (1938 icebreaker)

The Sisu was a Finnish state-owned icebreaker built in 1938. She was commissioned to keep Finnish ports open year-round, particularly during the harsh winter months when the Baltic Sea often freezes.

Sisu's design incorporated features typical of icebreakers of the period, including a reinforced hull, a specially shaped bow designed to ride up on and crush ice, and powerful engines. Her main role was to escort merchant ships through ice-covered waters and to break ice to clear shipping lanes.

During World War II, Sisu served in various capacities, including assisting the Finnish Navy. She remained in service after the war, continuing to break ice and support maritime transportation.

Sisu was eventually decommissioned and replaced by more modern icebreakers. While she is no longer in active service, she represents an important part of Finland's maritime history and the country's commitment to maintaining winter navigation capabilities. Further research might be needed to determine her current status (scrapped, museum ship, etc.).