Icebreaker Yermak
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Yermak (Russian: Ермак) (sometimes spelled Ermak) was a Russian icebreaker, often referred to as the world's first true icebreaker, with a strengthened hull shaped to ride over and crush pack ice.
Yermak was built for the Imperial Russian Navy under the supervision of Admiral Stepan Osipovich Makarov by Armstrong Whitworth in Newcastle upon Tyne at its Low Walker yard and launched in 1898. She was named after the famous Russian explorer of Siberia, Don Cossack ataman Yermak Timofeyevich.
She was commissioned on 29 October 1898, and on the very first voyage she reached 81°21'N north of Spitsbergen in 1899.
Another icebreaker with the name Yermak was built for the Soviet Union at Wärtsilä shipyard in Helsinki, Finland in 1974.