Layered Defense


Senior Member
Oct 5, 2009
Layered Defense

As we did at the 2010 edition of the Navy League's Sea-Air-Space Exposition in Washington, D.C. last week, I want to highlight some of Raytheon's Naval Weapon Systems (NWS) achievements from the past few months.

NWS made a significant change in early March. To provide greater focus on customer success and leverage synergy across our product mission areas, Raytheon Missile Systems created a new product line, Air & Missile Defense Systems (AMDS), and restructured NWS. This will result in improved program execution and will better position Missile Systems to provide superior products to our customers. AMDS is recognized as a systems engineering thought leader, fulfilling the needs of the global Ballistic Missile Defense System and providing air defense capabilities for the U.S. Navy and international allies. NWS continues our tradition of being the most admired layered defense provider through world-class people, and superior products and support solutions. Our people continue to be involved in producing systems that are used in the global theater to protect sailors, Marines and ships.

blog post photo

On Jan. 16, our SeaRAM Anti-ship Missile Defense System was unveiled on the USS Independence (LCS 2) when she was commissioned at Mobile Bay. First developed in 2001, SeaRAM is an evolved MK 15 Close-In Weapon System comprising key attributes of both the Phalanx Close-in Weapon System and the Rolling Airframe Missile (RAM) Guided Weapon System. The MK 15 Mod 31 SeaRAM extends the inner-layer battlespace, enabling ships to effectively engage both current and future high-performance, supersonic and subsonic threats at greater distances. The system provides the highest level of ship self-protection with extended keep-out range capability and the ability to successfully engage multiple targets. These important features strengthen the ship's ability to sustain its mission in the most challenging blue-water and littoral environments.

Technologies from Phalanx and RAM are integrated into the self-contained SeaRAM. An 11-round RAM launcher assembly, loaded with RAMs, replaces Phalanx's 20 mm gun. SeaRAM combines RAM's superior accuracy, extended range and high maneuverability with the Phalanx Block 1B's high resolution search-and-track sensor systems plus reliable, quick-response capability. The system will accommodate the RAM Block 2 when it is introduced into the fleet.

SeaRAM is an affordable capability upgrade — an especially attractive option for navies that have already deployed the Phalanx. The system fits the same shipboard installation footprint of the Phalanx, uses the same power, and requires only slight shipboard modification. SeaRAM is well-suited to new construction and requires minimal system integration because of its self-contained features. The integration risk is minimized because RAM and Phalanx are deployed as a part of the U.S. Navy's integrated Ship Self-Defense System. SeaRAM is also fully integrated with the LCS 2 Integrated Combat Management System. On May 3, SeaRAM successfully completed its first at-sea firing when two blast test vehicles were launched. Designed to validate the structural integrity of both the ship and the weapon system, the launches clear the way for SeaRAM's initial live-fire testing later this year. Stay tuned for more of my thoughts from the Navy League Sea-Air-Space Exposition.

Global Defence