During the 2014 Coast Guard Sector Jacksonville, Fla., Cutter Roundup, cutter crews compete against each other in the Heat and Beat Challenge Tuesday, April 29, 2014. Heat and beat is a technique used by Coast Guard aids to navigation crews when attaching new chain to a buoy and involves heating a shackle pin until it is glowing and then beating it into place using sledgehammers. (U.S. Coast Guard video by Petty Officer 1st Class Lauren Jorgensen) Available in high definition.
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