Voima (1952 icebreaker)
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Voima is a Finnish state-owned icebreaker. Built by Wärtsilä Hietalahti shipyard in Helsinki in 1954, she was the first icebreaker in the world to be equipped with two bow propellers and generated wid
Voima leaving Helsinki after bunkering on 5 April 2011
Voima was the first icebreaker in the world with two bow propellers
Voima shortly before delivery at Wärtsilä Hietalahti shipyard
Voima breaking ice outside Helsinki, showing her original outfit
Sisu (1938 icebreaker)
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Sisu was a Finnish state-owned icebreaker. Built in 1939 at Wärtsilä Hietalahti Shipyard in Helsinki, she was one of the world's first diesel-electric icebreakers. In addition to icebreaking duties, s
Sisu together with two Finnish submarines