Icebreaker
In May 2007, sea trials were completed for the nuclear-powered Russian icebreaker NS . The vessel was put into service by Murmansk Shipping Company, which manages all eight Russian state-owned nuclear icebreakers. The keel was originally laid in 1989 by Baltic Works of Leningrad, and the ship was launched in 1993 as NS "Ural". This icebreaker was intended to be the sixth and last of the "Arktika" class, and currently is the world's largest icebreaker.
List of Great Lakes museum and historic ships
is a vessel designed for icebreaking duties on the Great Lakes. "Mackinaw" was home-ported in Cheboygan, Michigan during its active service. Due to "Mackinaw"s age and expensive upkeep, the cutter was decommissioned and replaced with a smaller multipurpose cutter (, which was commissioned in Cheboygan the same day). The old "Mackinaw" moved under its own power on June 21, 2006 from the port of its decommissioning to a permanent berth (at the dock) at the ship's namesake port, Mackinaw City, Michigan, where she now serves as the Icebreaker Mackinaw Maritime Museum.