The agile 378-foot USS Freedom -- a survivable , semi-planing steel monohull -- will help the Navy defeat growing littoral , or close-to-shore , threats and provide access and dominance in coastal water battlespace . Displacing approximately 3,000 metric tons and reaching speeds well over 40 knots , USS Freedom is a fast , maneuverable and networked surface combatant with operational flexibility to execute focused missions such as mine warfare , anti-submarine warfare , surface warfare and the potential for a wide range of additional missions including maritime interdiction and humanitarian / disaster relief .