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Saha Expo International Defense Exhibition Turkey Istanbul

San Antonio class

San Antonio Class (LPD 17) Amphibious Transport Dock
also known as Landing Platform Dock / Amphibious Assault Ship

Description

Technical Data

Specifications

Detailed view

Pictures - Video

Description

As the San Antonio-class LPDs have entered service in recent years, Austin-class LPDs have been decommissioned. Collectively, these ships functionally replace over 41 ships (LPD 4, LSD 36, LKA 113, and LST 1179 classes of amphibious ships) providing the Navy and Marine Corps with modern, seabased platforms that are networked, survivable, and built to operate with 21st century transformational platforms, such as the MV-22 Osprey, the Expeditionary Fighting Vehicle (EFV), and future means by which Marines are delivered ashore.

A contract for final design and construction of San Antonio (LPD 17), the lead ship in the class, was awarded in December 1996; actual construction commenced in August 2000. USS San Antonio was delivered to the Navy in July 2005. LPDs 18-23 have also been delivered to the Navy. New York (LPD 21) is the first of three LPD 17-class ships built in honor of the victims of the Sept. 11, 2001, terrorist attacks. The ship?s bow stem was constructed using 7.5 tons of steel salvaged from the World Trade Center.

Shiplist

Name	Hull Number	Launched	Commissioned	Homeport
USS San Antonio	LPD-17	07/2003	01/2006	Norfolk
USS New Orleans	LPD-18	12/2004	03/2007	San Diego
USS Mesa Verde	LPD-19	11/2004	12/2007	Norfolk
USS Green Bay	LPD-20	08/2006	01/2009	San Diego
USS New York	LPD-21	12/2007	11/2009	Mayport
USS San Diego	LPD-22	05/2010	05/2012	San Diego
USS Anchorage	LPD-23	02/2011	05/2013	San Diego
USS Arlington	LPD-24	11/2010	02/2013	Norfolk
USS Sommerset	LPD-25	04/2012	03/2014	San Diego
USS John P. Murtha	LPD-26	-	-	-
USS Portland	LPD-27	-	-	-

Variants

- HII has a project for an Aegis Ballistic Missile Defense version based on the San Antonio class hull

Technical Data

Design

The design of the San Antonio Amphibious Assault Ships was jointly developed by U.S. Navy, Marine Corps and industry stakeholders to provide superior performance over a broad range of operational requirements. Construction of the ships continues at Ingalls' shipyards in Pascagoula Mississippi and Avondale Louisiana.
The unique design-engineering approach injected fleet input into the development process before construction began and shaped every element of the ships' systems and spaces to meet future requirements. Each LPD consists of 210 units built utilizing modular construction techniques. Each unit is extensively pre-outfitted with piping, electrical, machinery and ventilation systems along with many pieces of equipment prior to launch.

Features

San Antonio class LPDs are used to transport and land Marines, their equipment and supplies by embarked air cushion (LCAC) or conventional landing craft and Expeditionary Fighting Vehicles (EFV) or Amphibious Assault Vehicles (AAV) augmented by helicopters or vertical take off and landing aircraft (MV 22). These ships support amphibious assault, special operations or expeditionary warfare missions and can serve as secondary aviation platforms for amphibious ready groups.
Capacity:
» 14 Expeditionary Fighting Vehicles
» 2 LCAC landing craft or 1 LCU
» 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.
» Embarked Landing Force: 699 (66 officers, 633 enlisted); surge capacity to 800.

Missions

The multi-mission LPD 17 class plays a pivotal role in maintaining national security and strengthening the fleet. The ships are modern, networked sea-based platforms that feature improved command and control and enhanced survivability systems combined with tactical lift capability for transporting Marine Expeditionary Units. The Marines and their equipment are landed by embarked landing craft (LCAC) air cushion or conventional landing craft and amphibious assault vehicles, augmented by helicopters or vertical takeoff aircraft like the MV-22 Osprey.
Typical Missions include:
» Amphibious assault
» Special Operations
» Expeditionary Warfare
» Humanitarian Relief

Weapons

Anti-air missiles:
2x RIM-116 RAM launchers (21 missiles each)
Guns:
2x MK 46 (Bushmaster II) 30mm guns
9x MK 26 .50 caliber machine guns

Sensors, Electronics and Decoys

Combat Management and Information Systems:
n/a
Optronics:
n/a
Radars and ESM:
1x AN/SPS-48G 3D air search radar
1x AN/SPQ-9B surface search & fire control radar
Decoys/Counter measures/Jammers:
AN/SLQ-32 Electronic Warfare Suite
Communications:
Link 11
Link 16
Satellite links