English: Groton, Conn. (Feb. 3, 2005) - The Seawolf-class nuclear-powered attack submarine USS Jimmy Carter (SSN 23), underway during sea trials. Built by General Dynamics Electric Boat in Groton, Conn., Seawolf is the fastest, quietest, most heavily armed submarine in the world. Jimmy Carter is the third and final submarine of the Seawolf-class. A unique feature of the Jimmy Carter is a 100-foot hull extension called the Multi-Mission Platform, which provides enhanced payload capabilities, enabling the submarine to accommodate the advanced technology required to develop and test a new generation of weapons, sensors and undersea vehicles. The Jimmy Carter was delivered to the U.S. Navy on Dec. 22, 2004 and is due to be commissioned on Feb. 19, 2005.