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List of active Japan Maritime Self-Defense Force ships

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JMSDF ensign of Japan.

List of active ships of the Japan Maritime Self-Defense Force is a list of ships in active service with the Japan Maritime Self-Defense Force. The JMSDF is one of the world's largest navies and the second largest navy in Asia in terms of fleet tonnage.[1] As of 2024, the JMSDF operates a total of 155 vessels (including minor auxiliary vessels), including; four helicopter destroyers (or helicopter carriers), 36 destroyers, 5 frigates, six destroyer escorts (or frigates), 24 attack submarines, 30 mine countermeasure vessels, six patrol vessels, three landing ship tanks, 8 training vessels and a fleet of various auxiliary ships.[2][3]

As of 2013, a procurement list added to the current National Defense Program Guidelines (NDPG) has revealed that, among other things, an additional 48 escort vessels of various classes are planned to be added to the MSDF fleet in the 2020s.[4] In addition, as of 7 July 2013, it was being reported that plans were under way to procure two more Aegis equipped destroyers in order to bolster ongoing BMD efforts, the first to be contracted for in fiscal year 2015 and the other in fiscal year 2016.[5]

Submarine fleet

[edit]

Submarines

[edit]
Class In service Picture Type Ship No. Comm. Displacement Notes
Submarines (24 in service)
Oyashio-class 9 (JS) Kuroshio Attack submarine

(Diesel-electric)

JS Uzushio SS-592 2000 2,750 tonnes (surfaced)
4,000 tonnes (submerged) 		2 of 11 built converted to training ships (see Training Vessels below).
JS Makishio SS-593 2001
JS Isoshio SS-594 2002
JS Narushio SS-595 2003
JS Kuroshio SS-596 2004
JS Takashio SS-597 2005
JS Yaeshio SS-598 2006
JS Setoshio SS-599 2007
JS Mochishio SS-600 2008
Sōryū-class 10 JS Zuiryu under construction Attack submarine

(AIP sterling engine + lead-acid batteries)

JS Sōryū SS-501 2009 2,900 tonnes (surfaced)
4,200 tonnes (submerged) 		[6]
JS Unryū SS-502 2010
JS Hakuryū SS-503 2011
JS Kenryū SS-504 2012
JS Zuiryū SS-505 2013
JS Kokuryū SS-506 2015
JS Jinryū SS-507 2016
JS Sekiryū SS-508 2017
JS Seiryū SS-509 2018
JS Shōryū SS-510 2019
2 JS Ōryū (SS-511) Attack submarine

(AIP lithium-ion batteries)

JS Ōryū SS-511 2020 The JS Ōryū is the world's first submarine powered by lithium-ion batteries.[7]
JS Tōryū SS-512 2021
Taigei-class 3

(+2 ordered, +2 planned)

Naming and Launch Ceremony of SS Taigei Attack submarine

(AIP lithium ion)

JS Taigei SS-513 2022 3,000 tonnes (surfaced) Total planned of 7[8]
JS Hakugei SS-514 2023
JS Jingei SS-515 2024

Surface fleet

[edit]

Helicopter destroyers (de facto helicopter carrier/light aircraft carrier) - DDH/CVL

[edit]

Officially classed as "helicopter destroyers", these vessels have a full-length flight deck helicopter carrier configuration.

Class In service Picture Type Ship No. Comm. Displacement Notes
DDH – Helicopter-carrying destroyers (4 in service)
Hyūga-class 2 JS Hyūga DDH

(de facto helicopter carrier)

JS Hyūga DDH-181 2009 19,000 tonnes [9]
JS Ise DDH-182 2011
Izumo-class 2 JS Izumo DDH

(de facto light aircraft carrier)

JS Izumo DDH-183 2015 27,000 tonnes Converting into light aircraft carrier configuration to carry F-35B V/STOL fighters from the mid-2020s.[10][11]
JS Kaga DDH-184 2017

Landing ships

[edit]
Class In service Picture Type Ship No. Comm. Displacement Notes
Landing ships - LST (3 in service)
Ōsumi-class 3 Landing ship tank

(de facto Amphibious transport dock)

JS Ōsumi LST 4001 1998 14,000 tonnes Class upgraded to land Boeing MV-22s and carry the AAV7A1 Amphibious Assault Vehicles.[12][13][14]
JS Shimokita LST 4002 2002
JS Kunisaki LST 4003 2003
Landing craft (15 in service)
1-Go-class 6 LCAC

(air-cushioned landing craft)

— LCAC-2101 1997 182 tonnes 2 carried with each Ōsumi-class ships [15][16][17]
— LCAC-2102 1997
— LCAC-2103 2001
— LCAC-2104 2001
— LCAC-2105 2002
— LCAC-2106 2002
YL-09-class 7 LCM

(Landing craft mechanized)

— YL-12 — 50 tonnes
— YL-13 —
— YL-14 —
— YL-15 —
— YL-16 —
— YL-17 —
— YL-18 —
LCU-2001-class 1 LCU

(Landing craft utility)

JS LC-02 LCU-2002 1992 50 tonnes JS LC-01 decommissioned in 2022
YL-119-class 1 LCL

(Landing craft lighters)

— YL-119 — 200 tonnes

Destroyers - DDG/DD

[edit]

The JMSDF uses the official term Destroyers despite some larger ships being analogous to cruisers and smaller vessels being analogous to frigates by most international classifications.[18]

Class In service Picture Type Ship No. Comm. Displacement Notes
Guided missiles destroyers - DDG (8 in service)
Kongō-class 4 JS Myōkō DDG (Aegis) JS Kongō DDG-173 1993 9,500 tonnes [19]
JS Kirishima DDG-174 1995
JS Myōkō DDG-175 1996
JS Chōkai DDG-176 1998
Atago-class 2 JS Atago DDG (Aegis) JS Atago DDG-177 2007 10,000 tonnes [20]
JS Ashigara DDG-178 2008
Maya-class 2 JS Maya DDG (Aegis) JS Maya DDG-179 2020 10,500 tonnes [21]
JS Haguro DDG-180 2021
Destroyers - DD (28 in service)
Asagiri-class 8 JS Asagiri DD JS Asagiri DD-151 1988 5,200 tonnes Being replaced by the Mogami-class [22]
JS Yamagiri DD-152 1989
JS Yūgiri DD-153 1989
JS Amagiri DD-154 1989
JS Hamagiri DD-155 1990
JS Setogiri DD-156 1990
JS Sawagiri DD-157 1990
JS Umigiri DD-158 1991
Murasame-class 9 JS Ikazuchi DD JS Murasame DD-101 1996 6,200 tonnes [23]
JS Harusame DD-102 1997
JS Yūdachi DD-103 1999
JS Kirisame DD-104 1999
JS Inazuma DD-105 2000
JS Samidare DD-106 2000
JS Ikazuchi DD-107 2001
JS Akebono DD-108 2002
JS Ariake DD-109 2002
Takanami-class 5 JS Ōnami DD JS Takanami DD-110 2003 6,400 tonnes [24]
JS Onami DD-111 2003
JS Makinami DD-112 2004
JS Sazanami DD-113 2005
JS Suzunami DD-114 2006
Akizuki-class 4 JS Suzutsuki DD JS Akizuki DD-115 2012 6,800 tonnes [25]
JS Teruzuki DD-116 2013
JS Suzutsuki DD-117 2014
JS Fuyuzuki DD-118 2014
Asahi-class 2 JS Shiranui DD JS Asahi DD-119 2018 6,800 tonnes [26]
JS Shiranui DD-120 2019

Frigate Multi-Purpose/Mine - FFM

[edit]
Class In service Picture Type Ship No. Comm. Displacement Notes
Frigate Multi-Purpose/Mine - FFM (6 in Service)
Mogami-class 6

(+4 ordered +2 planned)

JS Mogami Frigate JS Mogami FFM-1 2022 5,500 tonnes Successor of the Asagiri-class and Abukuma-class. [27]

Designed for anti-submarine, anti-surface and anti-air warfare, as well as surveillance and minesweeping. [27]

JS Niyodo, JS Yūbetsu launched, but still being fitted out. 12 instead of 22 are planned in total. A new design should make the 10 other ships.[28]

JS Kumano FFM-2 2022
JS Noshiro FFM-3 2022
JS Mikuma FFM-4 2023
JS Yahagi [ja] FFM-5 2024
JS Agano [ja] FFM-6 2024

Destroyer escorts - DE

[edit]
Class In service Picture Type Ship No. Comm. Displacement Notes
Destroyer escorts - DE (6 in service)
Abukuma-class 6 Destroyer escort (or frigate) JS Abukuma DE-229 1989 2,550 tonnes To be replaced by the Mogami-class [29][30]
JS Jintsū DE-230 1990
JS Ōyodo DE-231 1991
JS Sendai DE-232 1991
JS Chikuma DE-233 1993
JS Tone DE-234 1993

Mine countermeasure vessels

[edit]
Class In service Picture Type Ship No. Comm. Displacement Notes
Mine countermeasure vessels (22 in service)
Uraga-class 2 Mine countermeasure support ship JS Uraga MST-463 1997 6,850 tonnes [31]
JS Bungo MST-464 1998
Sugashima-class 11 Minesweeper JS Sugashima MSC-681 1999 650 tonnes [32]

1 retired

JS Tsunoshima MSC-683 2000
JS Naoshima MSC-684 2001
JS Toyoshima MSC-685 2002
JS Ukushima MSC-686 2003
JS Izushima MSC-687 2003
JS Aishima MSC-688 2004
JS Aoshima MSC-689 2005
JS Miyajima MSC-690 2005
JS Shishijima MSC-691 2006
JS Kuroshima MSC-692 2007
Hirashima-class 3 Minesweeper JS Hirashima MSC-601 2008 650 tonnes [33]
JS Yakushima MSC-602 2009
JS Takashima MSC-603 2010
Enoshima-class 3 Minesweeper JS Enoshima MSC-604 2012 650 tonnes [33]
JS Chichijima MSC-605 2013
JS Hatsushima MSC-606 2015
Awaji-class 3

(+1 ordered)

Minesweeper JS Awaji MSO-304 2017 690 tonnes [34]
JS Hirado MSO-305 2018
JS Etajima MSO-306 2021

Patrol vessels

[edit]
Class In service Picture Type Ship No. Comm. Displacement Notes
Patrol vessels (6 in service)
Hayabusa-class 6 Guided-Missile Patrol Boat JS Hayabusa PG-824 2002 240 tonnes [35]
JS Wakataka PG-825 2002
JS Otaka PG-826 2003
JS Kumataka PG-827 2003
JS Umitaka PG-828 2004
JS Shirataka PG-829 2004

Surveillance ships

[edit]
Class In service Picture Type Ship No. Comm. Displacement Notes
Surveillance ships (3 in service)
Hibiki-class 3

(+1 ordered)

Ocean surveillance ship JS Hibiki AOS-5201 1991 2,896–3,861 tonnes Equipped with a AN/UQQ-2 Surveillance Towed Array Sensor System

[36]

JS Harima AOS-5202 1992
JS Aki AOS-5203 2021

Training vessels

[edit]
Class In service Picture Type Ship No. Comm. Displacement Notes
Training submarine (2 in service)
Oyashio-class 2 (JDS) Oyashio Training attack submarine

(Diesel-electric)

JS Oyashio TSS-3608

(former SS-590)

Commissioned in 1998, converted in 2015 2,750 tonnes (surfaced)
4,000 tonnes (submerged) 		[37]
JS Michishio TSS-3609

(former SS-591)

Commissioned in 1999, converted in 2017
Training surface vessels (5 in service)
Kashima-class 1 Cadet training ship JS Kashima TV-3508 1995 4,050 tonnes
Hatakaze-class 2 Training guided-missile destroyers JS Hatakaze TV-3520

(former DDG-171)

Commissioned in 1986, converted in 2020 6,100 tonnes Converted Hatakaze-class guided missile destroyer.
JS Shimakaze TV-3521

(former DDG-172)

Commissioned in 1988, converted in 2021
Kurobe-class 1 Training support ship JS Kurobe ATS-4202 1989 2,590 tonnes
Tenryū-class 1 Training support ship JS Tenryū ATS-4203 2000 2,790 tonnes

Auxiliary fleet

[edit]

Logistics

[edit]
Class In service Picture Type Ship No. Comm. Displacement Notes
Replenishment ships (5 in service)
Towada-class 3 Replenishment oiler JS Towada AOE-422 1987 15,000 tonnes [38]
JS Tokiwa AOE-423 1990
JS Hamana AOE-424 1990
Mashū-class 2 Replenishment oiler JS Mashū AOE-425 2006 25,000 tonnes [39]
JS Ōmi AOE-426 2006
Oil tankers (2 in service)
YOT-01-class 2 Yard oiler tanker — YOT-01 2022 6,000 tonnes [40]
— YOT-02 2022

Miscellaneous

[edit]
Class In service Picture Type Ship No. Comm. Displacement Notes
Experimental ships (1 in service)
Asuka-class 1
Experiment ship JS Asuka ASE-6102 1995 6,300 tonnes Performance confirmation tests for integrated navigation systems.
Training support ships (5 in service)
Hiuchi-class 5 Training support ship JS Hiuchi AMS-4301 2002 1,000 tonnes [41]

Support training exercises of other ships, including shooting practice and torpedo launching practice.

JS Suo AMS-4302 2004
JS Amakusa AMS-4303 2004
JS Genkai AMS-4304 2008
JS Enshu AMS-4305 2008
Rescue vessels (2 in service)
Chihaya-class 1 Submarine rescue vessel JS Chihaya ASR-403 2000 7,000 tonnes [42][43][44]
Chiyoda-class 1 Submarine rescue vessel JS Chiyoda ASR-404 2018 7,200 tonnes JMSDF commissions new submarine rescue ship[45]
Disaster relief (1 in service)
Hashidate-class 1 Accommodation ship JS Hashidate AYS-91 1999 490 tonnes Participates in disaster relief [46][47]
Diving support vessels (6 in service)
YDT-01-class 6 Diving support vessel — YDT-01 2000 260 tonnes Used for EOD missions. [48][49]
— YDT-02 2000
— YDT-03 2001
— YDT-04 2001
— YDT-05 2003
— YDT-06 2003
Cable laying ship (1 in service)
Muroto-class 1 Cable laying ship JS Muroto ARC-483 2013 6,500 tonnes
Icebreaker (1 in service)
Shirase-class (2008) 1 Icebreaker JS Shirase AGB-5003 2009 20,000 tonnes [50][51]
Research ships (3 in service)
Futami-class 1 Oceanographic research ship JS Wakasa AGS-5104 1986 3,200 tonnes First of the class retired in 2010
Nichinan -class 1 Oceanographic research ship JS Nichinan AGS-5105 1999 4,500 tonnes [52][53]
Shōnan-class 1 Oceanographic research ship JS Shōnan AGS-5106 2010 4,150 tonnes [54]

Future JMSDF vessels

[edit]
29SS-type submarine Taigei launch
30DX-type frigate Mogami launch
Japanese BMD map
Aegis system equipped ships (ASEV)

Authorized projects

[edit]

Authorized projects for the Japanese Maritime Self-Defense Force include the ongoing construction of an improved AIP-type non-nuclear attack submarine class, the recapitalization of the JMSDF's frigate fleet units, and the acquisition of a pair of JMSDF-owned oil tankers and up to four amphibious transports, as well as the pending construction of a dozen next-generation offshore patrol vessels (OPV) and two "Aegis system equipped ships" (ASEV) to provide dedicated sea-based ballistic missile defense (BMD) coverage of the Japanese home islands to replace the cancelled Aegis Ashore land-based BMD system.

29SS submarines

[edit]
Main article: Taigei-class submarine

This submarine class has a non-nuclear air-independent propulsion (AIP) propulsion plant using improved lithium-ion batteries for enhanced silencing and operational flexibility. These submarines will also have improved sonar and weapons systems. The lead ship Taigei will serve as a test bed for the rest of the class, allowing more rapid technical upgrades to the other submarines within this class.[55][56]

Aegis system equipped ships (ASEV)

[edit]
Main article: Aegis system equipped vessels (ASEV)

In 2020, Japanese Defense Minister Nobuo Kishi announced plans to build 2 new Aegis destroyers (pictured) to replace its scrapped land-based Aegis Ashore ballistic missile interceptors program.[57] On August 31, 2022, the Japan Ministry of Defense announced that JMSDF will operate two "Aegis system equipped ships" (イージス・システム搭載艦 in Japanese) to replace its earlier cancellation of the Aegis Ashore program, commissioning one ship by the end of fiscal year 2027, and the other by the end of FY2028. The budget for design and other related expenses are to be submitted in the form of “item requests”, without specific amounts, and the initial procurement of the lead items are expected to clear legislation by FY2023. Construction is to begin in the following year of FY2024.[58][59][60][61]

13DDX Air Defence Destroyer

[edit]

The Japanese Navy is designing a new generation of layered air-defence and information warfare destroyers. It will take concept elements from the Asahi-class (25DD) destroyer and the Mogami-class (30FFM) frigate. It is expected to be compact and stealthy as the 30FFM and as combat capable as the 25DD. It is planned for the early 2030s.[62]

30FFM frigates

[edit]
Main article: Mogami-class frigate

In August 2017, the Acquisition, Technology & Logistics Agency (ATLA) selected Mitsubishi Heavy Industries (MHI) and Mitsui Engineering and Shipbuilding (MES) as the prime contractor and subcontractor to construct the frigate. In addition, the agency also selected a completely new design of the vessel (30DX). The new ship class is set to replace the Asagiri-class destroyers and Abukuma-class destroyer escorts.[63]

Amphibious transport vessels

[edit]
See also: General Frank S. Besson-class support vessel

At a press conference held on February 16, 2021, Defense Minister Nobuo Kishi announced that the Japan Self-Defense Force (JSDF) established a joint amphibious unit equipped with three new transport ships by 2024. These units will consist of one medium-sized Logistics Support Vessels (LSV) capable of carrying about 1,700 long tons (1,700 t) of cargo and three smaller Landing Craft Utility (LCUs) vessels with each capable of carrying 350 long tons (360 t) of cargo and operating in shallow waters. Although the Japan Maritime Self-Defense Force (JMSDF) has been basically responsible for the operation of the vessels, these vessels will be operated by a joint unit as the focus is on supporting the Japan Ground Self-Defense Force (JGSDF) and other forces operating in remote Southwest Islands, including Okinawa.[64][65] The JSDF activated Japan's first marine unit since World War II on April 7, 2018, and the marines of the Amphibious Rapid Deployment Brigade (ARDB) are trained to counter invaders from occupying Japanese islands along the edge of the East China Sea.[66]

Next-generation offshore patrol vessels (OPV)

[edit]
Main article: Next-Generation Offshore Patrol Vessel (OPV) program

On 30 June 2022, the Japan Ministry of Defense (MOD) announced the construction of 12 offshore patrol vessels (OPV) (pictured) for the Japanese Maritime Self-Defense Force (JMSDF) at a cost of ¥ 9 billion (US$66 million) per ship. Japan Marine United Corporation (JMU) is the prime contractor for this program with Mitsubishi Heavy Industries (MHI) chosen to be the subcontractor. Both JMU and MHI as well as Mitsui Engineering & Shipbuilding had submitted preliminary designs for the proposed next-generation OPVs.[67][68]

Proposed projects

[edit]
See also: Territorial disputes of Japan
Exclusive economic zone of Japan. Disputed areas are marked in lighter color.

Given the various maritime-related territorial disputes and expanding operational requirements (pictured), the Japanese Maritime Self-Defense (JMSDF) has shown increased interest in augmenting its amphibious lift and expeditionary capabilities. Consequently, several Japanese defense firms such as Japan Marine United Corporation (JMU) and Mitsui Engineering & Shipbuilding (MES) have proposed amphibious warfare options at such industry trade shows as the Maritime Air Systems & Technologies (MAST) and Defence and Security Equipment International (DSEI) exhibits. Also, on March 4, 2014, Japan and the United States announced a bilateral research project on a LCS-style warship pursuant to the Mutual Defense Assistance Act.[69]

Amphibious assault ships (LHD)

[edit]
See also: Amphibious assault ship

In 2014, Japanese Defense Minister Itsunori Onodera expressed the intention of buying one amphibious assault ship (LHD) from the United States to provide more amphibious capabilities than the current Osumi class landing ships. The Wasp-class amphibious assault ship is most likely candidate for acquisition.[70]

JMU design concept
[edit]

During the annual Defence and Security Equipment International (DSEI) tradeshow held 18–19 November 2019 in Chiba, Japan, the Japan Marine United Corporation (JMU) unveiled its proposed design for a big-deck multi-purpose LHD-type amphibious assault ship for the Japan Maritime Self-Defense Force. The vessel's design features a floodable well deck for embarking two LCAC air-cushion landing craft plus 20 AAV7A1 amphibious assault vehicles. Its full-length flight deck boasts five marked landing spots for helicopters or MV-22B tiltrotors. Two below-deck hangars have space for five more rotorcraft. The vessel has a 500-person crew and an embarked unit of 500 marines. The JMU concept art displayed three RIM-116 Rolling Airframe Missile (RAM) SeaRAM launchers located before and aft of the ship's island superstructure, as well as a Mk 15 Phalanx 20mm-Vulcan cannon-armed Close-in Weapon System (CIWS) on the forward deck.[71][72][73]

The JMU's proposed LHD vessel's displacement is approximately 20,000 long tons (20,000 t) with an overall length of 720 ft (220 m), a beam of 124 ft (38 m), a draft of 26.25 ft (8.00 m), and a top speed of 24 knots (44 km/h; 28 mph).[72][73] Overall, the proposed JMSDF amphibious assault ship is substantially smaller than China's Type 075 vessels, South Korea's proposed LPH-II design, the U.S. Navy's Wasp-class amphibious assault ship, and Italian Navy's Trieste, and is more comparable to the Mistral-class amphibious assault ship of the French or the Egyptian navies.[72] A JMU representative told Jane's 360 that while the Japan Maritime Self-Defense Force did not have a current requirement for an LHD-type amphibious assault ship of any kind to join the JMSDF's Self Defense Fleet, the Japan Marine United Corporation still expected the JMSDF to eventually issue such a requirement in the near future, with the JMU design as an alternative to a foreign design.[72]

MES design concept
[edit]

At the Maritime Air Systems & Technologies (MAST) 2017 naval defense exhibition held in Tokyo, Mitsui Engineering & Shipbuilding (MES) unveiled a new LHD-type amphibious assault ship for the Japan Maritime Self-Defense Force. MES drew on its experience from constructing and delivering the Osumi and Shimokita tank landing ships (LSTs) to the JMSDF when designing the new LHD. According to Mistui spokesmen, the main missions of the proposed LHD vessel is island defense as well as humanitarian assistance/disaster relief (HA/DR) operations, with the Japan Maritime Self-Defense Force (JMSDF) is reportedly looking to boost its amphibious capabilities in order to protect its Southern Islands.[74]

Mitsui's proposed LHD vessel is designed for large-scale transportation of Landing Craft Air Cushion (LCAC) hovercraft, main battle tanks (MBTs), vehicles, cargo, and equipment, with multi-mission features. Its flight deck LHD has five helicopter spots and a hangar large enough to large helicopters such as the CH-47 Chinook tandem rotor heavy-lift helicopters. Its well deck is large enough to accommodate two LCACs, and it can store at least 24 assault amphibious vehicles (AAVs) on two decks.[74]

The Mitsui LHD concept measures 210 m (689 ft 0 in) in length, 35 m (114 ft 10 in) in width, and draws 7 m (23 ft 0 in) with displacement of 16,000 long tons (16,000 t) and a speed of 22 kn (25 mph; 41 km/h). The maximum complement of the vessel is 200 people including embarked troops. Mitsui's LHD is fitted with a forward Phalanx CIWS gun mount and a SeaRAM launcher at the stern. There are two shafts and two rudders, plus two bow thrusters. There is a main elevator for helicopters aft and a smaller one for stores and equipment forward near the island superstructure. Overall, the Mitsui LHD concept to the French Navy's Mistral-class LHDs.[74]

Amphibious transport dock (LPD)

[edit]
See also: Type 071 amphibious transport dock, Albion-class landing platform dock, and San Antonio-class amphibious transport dock

At the Maritime Air Systems & Technologies (MAST) 2017 naval defense exhibition held in Tokyo, Mitsui Engineering & Shipbuilding (MES) unveiled a new amphibious transport dock (LPD) concept. According to Mistui spokesmen, the main missions of the proposed LPD vessel is island defense as well as humanitarian assistance/disaster relief (HA/DR) operations, with the Japan Maritime Self-Defense Force (JMSDF) is reportedly looking to boost its amphibious capabilities in order to protect its Southern Islands.[75]

The proposed MES LPD design concept has an aft flight deck with two helicopter spots and a hangar large enough to receive two V-22 Osprey tilt-rotor aircraft and a small size VTOL unmanned aerial vehicle (UAV) similar in size to the MQ-8B Fire Scout. Beneath the flight deck is a well deck large enough to accommodate two Landing Craft Air Cushion (LCAC) hovercraft. Up to 40 AAV, MBT, and APC vehicles can be carried on two lower decks within the ship. The proposed ship measures 210 m (689 ft 0 in) in length, 30 m (98 ft 5 in) in width, and a draft of 7 m (23 ft 0 in) with a displacement of 16,000 long tons (16,000 t) and a speed of 22 kn (25 mph; 41 km/h). The maximum complement of the vessel is 200 people, including embarked troops. The LPD is fitted with a forward Phalanx CIWS gun mount and a SeaRAM launcher on top of the helicopter hangar. The vessel has two shafts and two rudders, as well as two bow thrusters, and also features two retractable fin stabilizers.[75]

Mobile landing platform (MLP)

[edit]
See also: Expeditionary Transfer Dock

At the Maritime Air Systems & Technologies (MAST) 2017 naval defense exhibition held in Tokyo, Mitsui Engineering & Shipbuilding (MES) unveiled its Mobile Landing Platform (MLP) concept designed for large scale transportation of Landing Craft Air Cushion (LCAC) hovercraft, main battle tanks (MBTs), vehicles, cargo, and other equipment, with multi-mission and modular features. In addition to its aviation operations and amphibious capabilities, this MLP can act as an offshore base. The Japan Maritime Self-Defense Force is reportedly looking to boost its amphibious capabilities in order to protect its Southern Islands.[76]

The MES's overall MLP design combines the aviation facilities of the U.S. Navy's Lewis B. Puller-class expeditionary mobile base ships with the extensive amphibious and expeditionary capabilities of the Montford Point-class expeditionary transfer dock vessels. There are four helicopter spots on the flight deck, but no helicopter hanger, with an elevator for stores and equipment next to spot #2. There is also a ramp allowing vehicles access between the two main decks. The MES mobile landing platform concept measures 240 m (787 ft 5 in) in length, 39 m (127 ft 11 in) in width, and a draft of 7 m (23 ft 0 in). The ship's displacement is 21,000 long tons (21,000 t), a speed of 15 kn (17 mph; 28 km/h), and a maximum complement of 240 people.[76]

33DD destroyers

[edit]
Main article: 33DD destroyer

The 33DD (also known as DDR or Destroyer Revolution) was a Japanese destroyer proposed for the Japan Maritime Self-Defense Force. The tentative name of the class, 33 DD, is derived from an estimate that it would be budgeted in the Japanese era of Heisei 33 (2021).[77][78]

High Speed Multi-hull Vessel Optimization (HSMVO)

[edit]
Main article: Future Multi Purpose Trimaran concept
HSMVO artist concept

The joint HSMVO research is conducted by the Acquisition, Technology & Logistics Agency (ATLA) and the Naval Surface Warfare Center Carderock Division of the US Navy.[79][80] Also known as the Future Multi Purpose Trimaran concept, the HSMVO design concept is based on the Independence-class littoral combat ship with its distinctive trimaran hull design, modular mission capabilities, and aluminum construction (pictured). The mission capabilities of the concept includes mine countermeasure (MCM), humanitarian assistance and disaster recover (HADR), and offshore patrol/special ops. Likewise, each configuration will consist of different weapons, equipment, and supplies.[80]

ATLA unveiled the HSMVO trimaran warship concept model at the Japanese defense trade-show MAST Asia 2017. According to Navy Recognition website, the project is set to end in 2018 and the JMSDF would ultimately decide whether to adopt the concept for development or not.[80] To date, no decision has been made regarding the future acquisition and construction of warships based on the HSMVO design concept.

References

[edit]
  1. ^ IISS 2010, Japanese Maritime Self-Defense Force
  2. ^ "Escort ship". Archived from the original on 23 December 2014. Retrieved 24 December 2014.
  3. ^ "Submarine (vessels)". Archived from the original on 22 December 2014. Retrieved 24 December 2014.
  4. ^ "EDITORIAL: Defense Ministry's 'shopping list' needs a radical review". AJW by The Asahi Shimbun. Archived from the original on 24 December 2014. Retrieved 24 December 2014.
  5. ^ Japan eyes two new Aegis destroyers to counter N. Korea missile threat Archived 8 July 2013 at the Wayback Machine Japan Times, 7 July 2013
  6. ^ "SS Soryu Class Submarines". Naval Technology. Retrieved 11 April 2024.
  7. ^ Japan commissions first Sōryū-class submarine equipped with lithium-ion batteries Jane's, 05 March 2020
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