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

[Zarvan]

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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http://www.janes.com/article/71354/...tipurpose-trimaran-concept-proposal-for-jmsdf

 

[Penguin]

MAST Asia 2017 Online Show Daily - ATLA Trimaran
MAST Asia 2017: Japan's ATLA Unveils Future Multi Purpose Trimaran Concept
Published: Tuesday, 13 June 2017 15:52

At MAST Asia 2017 (Maritime Air Systems & Technologies), the naval defense exhibition currently held in Tokyo, Japan's Acquisition Technology and Logistics Agency (ATLA) unveiled its HMSVO trimaran vessel concept. ATLA is a branch of Japan's MoD created in 2015 to "ensure technological superiority and respond to operational needs smoothly and quickly".

The HMSVO (standing for High Speed Multi-hull Vessel Optimisation) project is being conducted to improve design and performance evaluation capabilities for multi hull ships. The US Navy's NAVSEA Carderock division and Japan's MoD ATLA are cooperating on the project. Navy Recognition was told that the US design differs from the Japanese design however.

The project started in 2014, is set to end in 2018 and today ATLA naval architects and engineers are still testing the concept both via CFD and through the use of a scale model. Ultimately, the JMSDF may decide to give the concept a go ahead and move to detailed design... or not.

The trimaran concept measures 92 meters in length, 21 meters in width and 4 meters in draft for a displacement of 1,500 tons and a maximum speed of over 35 knots. The crew complement of the vessel is about 50 sailors. The trimaran has a range of 3500 nautical miles at 15 knots.

The hull form features three active ride control systems which significantly reduce pitch and roll motion.

The helicopter deck and hangar can accommodate a 14 ton (Merlin type) helicopter. HMSVO's is a full aluminum ship. The scale model on display at the show features a 76mm main gun by Oto Melara, a Phalanx CIWS on top of the helicopter hangar, three diesel engines and three waterjets and a mutli mission bay (over 730 square meters in surface).

For mine counter measure (MCM) missions, the trimaran can be fitted with 2x 40 feet containers for UUVs and their control units. In addition, 16x MCM UUVs can be stored in the multi mission bay. UUVs are launched and recovered with an overhead boom crane at the stern. The MCM configuration also includes 2x 11 meters MCM USVs, 1x VTOL UAV and 1x airborne MCM helicopter

The disaster relief configuration consists in 7x 40 feet containers, including medical ones.

The offshore patrol / special operations support configuration consists in 2x containers, 8x 7 meters RHIBs, 2x 11 meters RHIBs for VBSS teams, 1x ISR UAV and 1x helicopter.

http://www.navyrecognition.com/inde...ls-future-multi-purpose-trimaran-concept.html

http://www.mod.go.jp/atla/research/ats2015/image/pdf/2-5.pdf

https://forums.spacebattles.com/thr...t-ship-program-mast-asia-2017-updated.517411/

Japan Wants to Streamline Its Defense Industry
Japan’s new Acquisition, Technology and Logistics Agency (ATLA) is an attempt to overhaul its approach to defense tech.
By Yuki Tatsumi
October 02, 2015

The establishment of the Acquisition, Technology and Logistics Agency (ATLA) is a move that has been much anticipated among those who are interested in seeing more robust cooperation between the United States and Japan in defense technology.

http://thediplomat.com/2015/10/japan-wants-to-streamline-its-defense-industry/

 

[Green_Patriot]

So much for their deceptive name JMSDF (Japanese Maritime SELF DEFENCE Force). There is nothing self defensive about Japan. Its a bloody GODZILLA!
They have massively huge Naval assets and Advanced weaponry. This is just tip of an iceberg