page_title: Harpoon (missile)
section_title: Harpoon Block II
hierarchical_section_title: Harpoon (missile) / Development / Harpoon Block II
caption_attribution_description: English: YOKOSUKA, Japan (Nov. 20, 2008) Members of the guided-missile destroyer USS Fitzgerald's (DDG 62) Harpoon handling team carefully lower an all-up-round Harpoon missile into its launch rack on the aft Vertical Launching Systems deck during ammunition onload operations with Naval Munitions Command Explosive Activities Division Detachment Yokosuka. (U.S. Navy photo by Ensign James Lamb/Released)
context_page_description: The Harpoon is an all-weather, over-the-horizon, anti-ship missile, developed and manufactured by McDonnell Douglas. The Standoff Land Attack Missile is a land-attack variant.
  The regular Harpoon uses active radar homing and flies just above the water to evade defenses. The missile can be launched from:
  Fixed-wing aircraft
  Surface ships
  Submarines;
  Coastal defense batteries, from which it would be fired with a solid-fuel rocket booster.
context_section_description: In production at Boeing facilities in Saint Charles, Missouri, is the Harpoon Block II, intended to offer an expanded engagement envelope, enhanced resistance to electronic countermeasures and improved targeting. Specifically, the Harpoon was initially designed as an open-ocean weapon. The Block II missiles continue progress begun with Block IE, and the Block II missile provides the Harpoon with a littoral-water anti-ship capability.
  The key improvements of the Harpoon Block II are obtained by incorporating the inertial measurement unit from the Joint Direct Attack Munition program, and the software, computer, Global Positioning System (GPS)/inertial navigation system and GPS antenna/receiver from the SLAM Expanded Response (SLAM-ER), an upgrade to the SLAM.
  The US Navy awarded a $120 million contract to Boeing in July 2011 for the production of about 60 Block II Harpoon missiles, including missiles for 6 foreign militaries. Boeing lists 30 foreign navies as Block II customers.
  India acquired 24 Harpoon Block II missiles to arm its maritime strike Jaguar fighters in a deal worth $170 million through the Foreign Military Sales system. In December 2010, the Defense Security Cooperation Agency (DSCA) notified U.S. Congress of a possible sale of 21 additional AGM-84L HARPOON Block II Missiles and associated equipment, parts and logistical support for a complete package worth approximately $200 million; the Indian government intends to use these missiles on its Indian Navy P-8I Neptune maritime patrol aircraft. The Indian Navy is also planning to upgrade the fleet of four submarines – Shishumar class – with tube-launched Harpoon missiles.
  Harpoon Block 2 missiles are designated AGM/RGM/UGM-84L.
  In early 2018, the U.S. State Department approved the sale of Harpoon Block II to the Mexican Navy for use on their future Sigma-class design frigates, the first of which is being built by Damen Schelde Naval Shipbuilding.
caption: Loading Mk 141 canister launcher
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