The crew of Coast Guard Station Port Huron, Mich., began training on the station's new 45-foot Response-Boat-Medium, Monday after taking possession of the boat last Thursday. The RB-M can respond faster than previous boats of similar size with a top speed in excess of 40 knots, has advanced search capability with an installed forward-looking infrared search technology, the Coast Guard said. Additionally, with twin jet propulsion, the vessel is able to respond in shallower water. "We are excited to bring a new and improved boat to the Blue Water Area," said Chief Petty Officer Kevin J.