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 | | In 1959, the world's first nuclear-powered icebreaker, the Lenin (44,000 horsepower), was commissioned and the navigation period increased from one and a half to seven months a year. |
 | | Large linear icebreakers - the Arktika, Sibir, Rossiya and others - could give their captains more than 75,000 hp and accomplish missions in the harsh conditions of the ice-covered sea, far away from ports for a long time. |
 | | Apart from the Lenin, seven nuclear-powered icebreakers and oceanic nuclear lighter carriers and container ships were built between 1975 and 1992. |
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