Navy asks Raytheon to provide critical components for radar-guided anti-air missiles for ship self defense

Nov. 21, 2023
The ship self defense missile has a dual-mode X-band radar seeker than can engage enemy planes and missiles at ranges beyond 25 miles.

WASHINGTON – Missile experts at Raytheon Technologies Corp. (RTX) will provide critical components for this year's allocation of next-generation shipboard anti-air missiles to defeat enemy aircraft and missiles with an active radar seeker than can operate independently of ship's launchers.

Officials of the Naval Sea Systems Command in Washington announced a $94.1 million order Friday to the RTX Raytheon segment in Tucson, Ariz., for guided missile assemblies, shipping containers, and spare parts for the RIM-162 Evolved Seasparrow Missile (ESSM) Block 2.

The ESSM Block 2 first was deployed with the Navy and allied navies in 2020. The ship self defense missile has a dual-mode X-band radar seeker than can engage enemy planes and missiles at ranges beyond 25 miles. RIM stands for radar intercept missile.

Compared with its ESSM Block 1 predecessor, the ESSM Block 2 anti-aircraft missiles have increased maneuverability and other enhancements that enable the missile to defeat future threats to U.S. and allied navies operating in hostile environments, Raytheon officials say. The ESSM Block 2’s active seeker will support terminal engagement without the launch ship’s target illumination radars.

Related: Navy asks Raytheon to upgrade radar-guided machine guns for ship defense aboard South Korea surface warships

In addition to the U.S. Navy, the governments of Australia, Belgium, Canada, Denmark, Germany, Greece, The Netherlands, Norway, Portugal, Spain, and Turkey will operate ESSM Block 2 anti-air missile.

ESSM is a medium-range, semi-active radar-guided missile that makes flight corrections via radar and midcourse data uplinks. The missile provides reliable ship self-defense capability against agile, high-speed, low-altitude anti-ship cruise missiles, low-velocity air threats like helicopters, and high-speed, maneuverable enemy surface vessels.

The missile is 12 feet long and has 10-inch-diameter control and rocket motor sections that tapper to an 8-inch-diameter guidance section with a radome-protected antenna for semi-active homing and a warhead. It has a high-thrust, solid-propellant rocket motor and tail control via a thrust vector controller.

Related: RTX Raytheon to build radar-guided anti-air missiles with upgraded guidance section in $1.15 billion deal

The first production ESSM Block 1 was delivered in late 2002 and has been in full operational use in the U.S. since 2004.

On this order RTX Raytheon will do the work in Tucson, Ariz.; Edinburgh, Australia; San Jose, Torrance, and Westlake Village, Calif.; Raufoss, Norway; Mississauga and Cambridge, Ontario; Ottobrunn, Germany; Nashua, N.H.; Hengelo Ov, The Netherlands; Koropi Attica, Greece; Canton, N.Y.; Ankara, Turkey; Grenaa, Denmark, and should be finished by March 2025.

For more information contact RTX Raytheon online at, or Naval Sea Systems Command at

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