English: Groton, Conn. (February, 2005) - The Seawolf-class nuclear-powered attack submarine USS Jimmy Carter (SSN 23) 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 commissioned on Feb. 19, 2005.