USS San Antonio and USS New York in June 2011. Class overview Builders: Huntington Ingalls Industries (formerly Northrop Grumman Ship Systems) Operators: United States Navy Preceded by: Austin-class amphibious transport dock Newport-class tank landing ship Charleston-class amphibious cargo ship Succeeded by: N/A—current authorized amphibious transport dock line Cost: $1.602 billion (ave. for class, FY2012)[1] $2.021 billion (last ship, FY2012)[1] Built: 2000–2017 (forecast)[1] In commission: 2006–present Building: 1 Planned: 12 Completed: 11 Active: 11 General characteristics [2] Type: Amphibious transport dock Displacement: 25,300 t (full) Length: 684 ft (208 m) Beam: 105 ft (32 m) Draft: 23 ft (7.0 m), full load Propulsion: Four sequentially turbocharged marine Colt-Pielstick diesel engines, two shafts, 41,600 shp Speed: In excess of 22 knots (25 mph; 41 km/h) Boats & landing craft carried: Two LCACs (air cushion); or 1× LCU (conventional) 14× Amphibious Assault Vehicles Complement: Crew: 28 officers, and 333 enlisted men Landing force: 66 officers, and 633 enlisted men Sensors and processing systems: AN/SPS-48G, AN/SPQ-9B[1] Electronic warfare & decoys: AN/SLQ-32[1] Armament: 2× Bushmaster II 30 mm close-in-guns two Rolling Airframe Missile launchers two Mk 41 eight-cell VLS for quad-packed ESSMs (not fitted) Several twin M2 Browning machine gun turrets Aircraft carried: Launch or land up to two MV-22 Osprey tilt-rotor aircraft simultaneously with room to place four MV-22s on the flight deck and one in the hangar deck