- 2 * MTU Friedrichshafen 20V 8000 Series diesel engines
- 2 * General Electric LM2500 gas turbines
- 2 * American VULKAN light weight multiple-section carbon fiber propulsion shaft lines
- 4 * Wärtsilä waterjets, retractable bow-mounted azimuth thruster
- 4 * diesel generators
2 * 7 metres (23 ft) long rigid-hulled inflatable boats
- SAAB Sea GIRAFFE 3D air and surface search radar
- Sperry Marine BridgeMaster E navigational radar
- AN/KAX-2 electro-optical sensor with TV and FLIR
- Northrop Grumman ICMS (Integrated Combat Management System)
- ITT Corporation ES-3601 ESM system
- 4 * SRBOC decoy launchers for chaff and infrared decoys
- BAE Systems NULKA active radar decoy system
- four-cell RGM-84D Harpoon Block 1C missile launcher
- 1 * BAE Systems Mk 110 57 mm gun
- 4 * .50 cal (12.7 mm) guns (2 aft, 2 forward)
- 1 * 11 cell Raytheon SeaRAM CIWS
- Other weapons as part of mission modules
- 2 * MH-60R/S Seahawk
- MQ-8 Fire Scout
USS Coronado (LCS-4) is an Independence-class littoral combat ship. She is the third ship of the United States Navy to be named after Coronado, California. The contract was awarded to General Dynamics-Bath Iron Works in May 2009 for the construction of LCS-4.
In 2002, the U.S. Navy initiated a program to develop the first of a fleet of littoral combat ships. The Navy initially ordered two trimaran hulled ships from General Dynamics, which became known as the Independence-class littoral combat ships after the first ship of the class, USS Independence. Even-numbered U.S. Navy littoral combat ships are built using the Independence-class trimaran design, while odd-numbered ships are based on a competing design, the conventional monohull Freedom-class littoral combat ship. The initial order of littoral combat ships involved a total of four ships, including two of the Independence-class design. These seaframes were designed be outfitted with reconfigurable payloads, called mission packages, which can be changed out quickly. Mission packages are supported by special detachments that will deploy manned and unmanned vehicles and sensors.
Coronado is the second Independence-class littoral combat ship. Coronado was built by Austal USA in Mobile, Alabama. Coronado is the first Independence-class ship to carry standard 7 metres (23 ft) long rigid-hulled inflatable boats and improvements in corrosion protection and propulsion over the original Independence (LCS-2) design.