LRASM will fly towards its target at medium altitude then drop to low altitude for a sea skimming approach to counter missile defenses. It can be directed to attack enemy ships by its launch platform, receive updates via its datalink, or use onboard sensors to find its target. The LRASM is based on the AGM-158B JASSM-ER, but incorporates a multi-mode passive RF, a new weapon data-link and altimeter, and an uprated power system. The missile will be designed with counter-countermeasures to evade hostile active defense systems. These capabilities will enable positive target identification, precision engagement of moving ships and establishment of initial target cueing in extremely hostile environments. Unlike current anti-ship missiles the LRASM is expected to be capable of conducting autonomous targeting, relying on on-board targeting systems to independently acquire the target without the presence of prior, precision intelligence, or supporting services like Global Positioning Satellite navigation and data-links.
In August 2015, the missile was officially designated AGM-158C. It is expected the LRASM will compete against the joint Kongsberg/ Raytheon offering of the Joint Strike Missile for air-launch needs and an upgraded Raytheon Tomahawk cruise missile for surface-launch needs. The OASuW Increment 2 competition will be completely open and start by FY 2017. In March 2014, the Navy said it will hold a competition for the Offensive Anti-Surface Warfare (OASuW)/Increment 2 anti-ship missile as a follow-on to LRASM to enter service in 2024. The Navy was authorized by the Pentagon to put the LRASM into limited production as an operational weapon in February 2014 as an urgent capability stop-gap solution to address range and survivability problems with the Harpoon and to prioritize defeating enemy warships, which has been neglected since the end of the Cold War but taken on importance with the modernization of the People’s Liberation Army Navy. In June 2014, GAO denied the protest, holding an award to any other source would be likely to cause substantial duplication of costs that were not expected to be recovered through competition, and unacceptable delays in meeting the Government's needs. Government Accountability Office (GAO) against DARPA's decision. In March 2014, Raytheon/ Kongsberg filed a joint protest with the U.S. In December 2013, DARPA publicized its intent to award a sole-source follow-on contract to Lockheed Martin for continued maturation of the LRASM subsystems and system design, which will be transitioned to the Navy. In June 2009, DARPA awarded a contract to Lockheed Martin for the two-phase LRASM demonstration program. Navy's current Harpoon anti-ship missile, which has been in service since 1977.
The LRASM was intended to pioneer more sophisticated autonomous targeting capabilities than the U.S. The AGM-158C LRASM ( Long Range Anti-Ship Missile) is a stealth anti-ship cruise missile developed for the United States Air Force and United States Navy by the Defense Advanced Research Projects Agency ( DARPA).
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