U.S. Coast Guard Fireman David Deaton tosses a life preserver into the water Nov. 14, 2016, at USCG Sector Charleston, South Carolina. The floatation device, equipped with a GPS, is being deployed during a man overboard training exercise to record the rescue time. The goal is to accomplish a successful rescue in less than two minutes.

U.S. Coast Guard Fireman Gabrielle Marshall, left, and Fireman David Deaton, right, recover a life preserver from the water during training Nov. 14, 2016, at USCG Sector Charleston, South Carolina. The floatation device, equipped with a GPS, was deployed during a man overboard training exercise to record the rescue time. The goal is to accomplish a successful rescue in less than two minutes.

U.S. Coast Guard Fireman David Deaton secures the mooring line Nov. 14, 2016, at USCG Sector Charleston, South Carolina. The boat is tied to a dock in the Charleston Harbor following a man overboard training exercise demonstration. The training is used to simulate recovering someone from the water as quickly and safely as possible. The goal is to accomplish a successful rescue time in less than two minutes.