Amphibious Assault Ships
Wasp Class
Builder: Northrop Grumman Ship Systems Ingalls Operations, Pascagoula, MS.
Date Deployed: July 29, 1989 (USS Wasp)
Propulsion: (LHDs 1–7) two boilers, two geared steam turbines, two shafts, 70,000 total shaft horsepower; (LHD 8) two gas turbines, two shafts; 70,000 total shaft horsepower, two 5,000 horsepower auxiliary propulsion motors.
Length: 844 feet (253.2 meters).
Beam: 106 feet (31.8 meters).
Displacement: LHDs 1-4: 40,650 tons full load (41,302.3 metric tons)
LHDs 5-7: 40,358 tons full load (41,005.6 metric tons)
LHD 8: 41,772 tons full load (42,442.3 metric tons).
Speed: 20+ knots (23.5+ miles per hour).
Crew: Ships Company: 104 officers, 1,004 enlisted
LHD 8: 65 officers, 994 enlisted
Marine Detachment: 1,687 troops (plus 184 surge).
Armament: Two RAM launchers; two NATO Sea Sparrow launchers; three 20mm Phalanx CIWS mounts (two on LHD 5-8); four .50 cal. machine guns; four 25 mm Mk 38 machine guns (LHD 5-8 have three 25 mm Mk 38 machine guns).
Aircraft: 12 CH-46 Sea Knight helicopters; 4 CH-53E Sea Stallion helicopters; 6 AV-8B Harrier attack aircraft; 3 UH-1N Huey helicopters; 4 AH-1W Super Cobra helicopters. (planned capability to embark MV-22 Osprey VTOL tilt-rotors).
San Antonio Class
Builder: Northrop Grumman Ships Systems, with Raytheon Systems Corporation and Intergraph Corporation.
Propulsion: Four sequentially turbocharged marine Colt-Pielstick Diesels, two shafts, 41,600 shaft horsepower.
Length: 684 feet (208.5 meters).
Beam: 105 feet (31.9 meters).
Displacement: Approximately 24,900 long tons (25,300 metric tons) full load.
Speed: In excess of 22 knots (24.2 mph, 38.7 kph).
Crew: Ship’s Company: 360 Sailors (28 officers, 332 enlisted)
Embarked Landing Force: 699 (66 officers, 633 enlisted); surge capacity to 800.
Armament: Two Bushmaster II 30 mm Close in Guns, fore and aft; two Rolling Airframe Missile launchers, fore and aft.
Aircraft: Launch or land two CH53E Super Stallion helicopters or two MV-22 Osprey tilt rotor aircraft or up to four CH-46 Sea Knight helicopters, AH-1 or UH-1 helicopters.
Landing/Attack Craft: Two LCACs or one LCU; and 14 Expeditionary Fighting Vehicles/Amphibious Assault Vehicles.
-
- USS Wasp (LHD 1), Norfolk, VA
- USS Essex (LHD 2), Sasebo, Japan
- USS Kearsarge (LHD 3), Norfolk, VA
- USS Boxer (LHD 4), San Diego, CA
- USS Bataan (LHD 5), Norfolk, VA
- USS Bonhomme Richard (LHD 6), San Diego, CA
- USS Iwo Jima (LHD 7), Norfolk, VA
- Makin Island (LHD 8) – under construction
-
- USS San Antonio (LPD 17), Norfolk, VA
- USS New Orleans (LPD 18), San Diego, CA
- USS Mesa Verde (LPD 19), Norfolk, VA
- Green Bay (LPD 20)
- New York (LPD 21), Norfolk, VA (effective 1 June 2009)
- San Diego (LPD 22)
- Anchorage (LPD 23)
- Arlington (LPD 24)
- Somerset (LPD 25)
Tarawa Class
Builder: Ingalls Shipbuilding, Pascagoula, MS.
Date Deployed: May 29, 1976 (USS Tarawa)
Propulsion: Two boilers, two geared steam turbines, two shafts, 70,000 total shaft horsepower.
Length: 820 feet (249.9 meters).
Beam: 106 feet (31.8 meters).
Displacement: 39,400 tons (40,032 metric tons) full load.
Speed: 24 knots (27.6 miles per hour).
Crew: Ships Company: 82 officers, 882 enlisted
Marine Detachment 1,900 plus.
Armament: Two RAM launchers; two Phalanx 20 mm CIWS mount; three .50 cal. machine guns; four 25 mm Mk 38 machine guns.
Aircraft: 12 CH-46 Sea Knight helicopters; 4 CH-53E Sea Stallion helicopters; 6 AV-8B Harrier attack aircraft; 3 UH-1N Huey helicopters; 4 AH-1W Super Cobra helicopters.
Austin Class
Builder: LPD 4-6, New York Naval Shipyard
LPD 7 and LPD 8, Ingalls Shipbuilding
LPD 9, 10, 12-15, Lockheed Shipbuilding.
Date Deployed: Feb. 6, 1965 (USS Austin)
Unit Cost: $235-419 million.
Propulsion: Two boilers, two steam turbines, two shafts, 24,000 shaft horsepower.
Length: 570 feet (171 meters).
Beam: 84 feet (25.2 meters).
Displacement: Approximately 17,000 tons (17,272.82 metric tons) full load.
Speed: 21 knots (24.2 mph, 38.7 kph).
Crew: Ship’s Company: 420 (24 officers, 396 enlisted), Marine Detachment: 900.
Armament: Two 25mm Mk 38 guns; two Phalanx CIWS; and eight .50-calibre machine guns.
Aircraft: Up to six CH-46 Sea Knight helicopters.
-
- USS Wasp (LHD 1), Norfolk, VA
- USS Essex (LHD 2), Sasebo, Japan
- USS Kearsarge (LHD 3), Norfolk, VA
- USS Boxer (LHD 4), San Diego, CA
- USS Bataan (LHD 5), Norfolk, VA
- USS Bonhomme Richard (LHD 6), San Diego, CA
- USS Iwo Jima (LHD 7), Norfolk, VA
- Makin Island (LHD 8) – under construction
-
- USS Ogden (LPD 5), San Diego, CA
- USS Cleveland (LPD 7), San Diego, CA
- USS Denver (LPD 9), San Diego, CA
- USS Juneau (LPD 10), Sasebo, Japan
- USS Shreveport (LPD 12), Norfolk, VA
- USS Nashville (LPD 13), Norfolk, VA
- USS Trenton (LPD 14), Norfolk, VA
- USS Ponce (LPD 15), Norfolk, VA