One of the Coast Guard Cutter Healy's four diesel/electric engines provides power to the vessel as it leaves the port of Seward, Alaska, Aug. 8, 2014. The Healy's engines can generate up to 30,000 horsepower and allow the vessel to smash through thick Arctic ice. (U.S. Coast Guard photo by Petty Officer 1st Class Shawn Eggert)
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