CONTENT PREVIEW
Sea Platforms

MAST Asia 2017: Japan unveils further details of multipurpose trimaran concept proposal for JMSDF

12 June 2017
A model of the trimaran concept being proposed by ATLA to the JMSDF. Source: IHS Markit/Ridzwan Rahmat

Key Points

  • Japan has unveiled further details of a trimaran concept it has been working on since 2014
  • Platform is intended to fill the gap between the JMSDF's large surface combatants and small patrol boats

The Japanese Ministry of Defense's (MoD's) acquisition, technology & logistics agency (ATLA) has unveiled further details of a multipurpose trimaran concept that is being proposed to the Japan Maritime Self-Defense Force (JMSDF).

A study for the concept was first initiated in 2014 in response to a requirement for a platform that can swiftly respond to naval mine threats, but it has since evolved to fill a perceived gap between the JMSDF's larger surface combatants and smaller patrol craft, according to an ATLA official who spoke to Jane's at the MAST Asia 2017 defence exhibition and conference in Tokyo.

The proposal features an overall length of 92 m, and overall beam of 21 m, a draught of 4 m, and a full load displacement of about 1,500 tonnes with full aluminium hull and super structure. The concept also has maximum speeds in excess of 35 kt, and a standard range of 3,500 n miles at 15 kt.

The concept is helicopter-capable for aircraft of up to 14 tonnes, and has been designed to now undertake a spectrum of duties beyond mine countermeasures, including maritime interdictions, counter-piracy, and search-and-rescue (SAR) missions. A mission bay underneath the helicopter deck has also been incorporated to fit a number of containerised mission modules such as those for unmanned aerial vehicle (UAV) operations. The mission bay was not present in earlier proposals for the trimaran, said the ATLA official.

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