Melco to produce ESSM Block 2 missiles in Japan

Raytheon and the US Navy test an ESSM Block 2 missile from the US Navy's Self-Defense Test Ship (SDTS). Japan's Mitsubishi Electric Corporation has awarded a contract to Raytheon for licensed production of ESSM Block 2 in Japan. (US Navy)

Japan's Mitsubishi Electric Corporation (Melco) has awarded a contract worth USD250 million to Raytheon for licensed production of the Evolved Sea Sparrow Missile (ESSM) Block 2.

Under the contract, Raytheon will supply missile kits, parts, components, and technical support for ESSM Block 2 production at Melco's facility in Japan, Raytheon announced on 24 June.

“ESSM Block 2 is a short-to-medium-range, ship-launched, dual-mode, guided missile that has increased manoeuvrability and improved performance over its Block 1 predecessor,” Raytheon said.

“The newest variant reduces dependence on shipboard illumination and is integrated on a wide variety of combat systems and launchers, delivering improved performance in stressing marine environments, and has significant digital processing margin to keep pace with evolving threats through software improvements,” the company added.

Janes has previously reported that the most important upgrade to ESSM Block 2 is a new dual-mode seeker, introducing an active radar channel alongside semi-active radar homing. The active seeker supports terminal engagement without requiring target illumination by the launch ship.

According to Janes Weapons: Naval, ESSM Block 2 has an overall length of 4.57 m, a diameter of 254 mm, and is equipped with a 39 kg blast fragmentation warhead.

Raytheon said the contract with Melco will enhance Japan's missile defence and missile manufacturing capabilities and strengthen interoperability with the US military.