Japan’s Hitachi Ltd is procuring more than a dozen REMUS 300 small UUVs from HII. (HII)
Japan’s Hitachi Ltd has awarded a contract to US-based HII to procure REMUS (Remote Environmental Monitoring Units) 300 small unmanned underwater vehicles (UUVs), HII announced on 1 July.
HII will deliver “more than a dozen” REMUS 300 UUVs to Hitachi over several years, the company said. REMUS 300 has flexible payload options, and can be deployed by the US and its allies for a range of missions including minehunting, the company added.
It is unclear if Hitachi has secured a contract from the Japan Maritime Self-Defense Force (JMSDF) to supply the REMUS 300 UUVs. HII said the contract from Hitachi reinforces the US’ enduring relationship with Japan.
According to Janes Unmanned Maritime Vehicles, REMUS 300 is a modular, two-man portable UUV with an operating depth of 305 m and a speed of up to 5 kt. It can be deployed for mine-countermeasures (MCM), search and recovery (SAR), rapid environmental assessment (REA), intelligence, surveillance, and reconnaissance (ISR), and anti-submarine warfare (ASW) operations.
REMUS 300 is equipped with Teledyne 300 kHz phased-array Doppler Velocity Log (DVL) with 200 m bottom lock; Marine Sonics MK II Arc Scout 900/1,800 kHz dual frequency sonar; NBOSI conductivity and temperature (CT) sensor; and TE Connectivity depth sensor.
HII said REMUS 300 is available in four configurations including the base configuration, long-endurance configuration, small payload configuration, and large payload configuration. The base configuration has a length of 2.03 m, a weight of 48.5 kg, an endurance of 10 hours at 3 kt, and a range of 55 km at 3 kt.
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