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Russian asymmetric icebreaker. extreme ice attack angles. with variable thrust vectoring. tests, baltika, j a anmurtaja, icebreaker, eisbrecher, isbrytare, oblique icebreaker, aker arctic, arctech, arctech helsinki shipyard, yantar, aker arc 100, ice, ice trials, icebreaking, arctic, kara sea, gulf of ob, sabetta, extreme ice attack angles with variable thrust vectoring tests, science technology.