According to Navy Recognition, on March 24, 2021, Japan Ministry of Defense Nakayama attended the commission ceremony for the new submarine JS Tōryū (SS-512), the 12th submarine of Sōryū-class and instructed to the crew.
JS Tōryū (SS-512) is the 12th and final Sōryū-class submarine produced for the JMSDF (the 6th built by Kawasaki Heavy Industries, the other 6 having been built by Mitsubishi Heavy Industries). «Tōryū» means «Fighting Dragon». The name of Tōryū is derived from the famous scenic dragon fighting in Kato City, Hyogo Prefecture, where the torrent of the Kako River flows between strangely shaped rocks.
The ship, built for 69 billion yen, has a displacement of 2,950 tons and a total length of 275.6 feet/84 meters and a width of 29.8 feet/9.1 meters. It is capable of navigating at about 20 knots/23 mph/37 km/h when submerged and 12 knots/14 mph/22 km/h when surfaced. The power source uses a lithium-ion battery, which has excellent submarine capabilities and automates the system. The Submarine is equipped with a Kawasaki 12V 25/25SB type diesel engine and another Kawasaki Kokkamusu V4-275R Stirling engine four.
The Sōryū-class is a diesel-electric submarine built by the Japanese companies Mitsubishi Heavy Industries and Kawasaki Shipbuilding Corporation for the Japan Maritime Self-Defense Force (JMSDF). It is an improved version of the Oyashio Class submarine. The keel for the first Sōryū-class submarine was laid down in March 2005 and launched in December 2007 and commissioned in March 2009.
The Sōryū-class is equipped with six HU-606 533-mm torpedo tubes that can fire Type 89 heavyweight homing torpedoes and UGM-84 Harpoon anti-ship missiles. It has an optronic mast and ZPS-6F surface/low-level air search radar for detection of enemy Anti-Submarine Warfare (ASW) and maritime patrol craft, as well as the Hughes/Oki ZQQ-7 sonar suite incorporating one bow-mounted sonar array and four flank sonar arrays.
The Sōryū-class submarine has a range of 6,100 nautical miles/7,020 miles/11,297 km and can reportedly dive to a depth of 2,132 feet/650 m, or two-fifths of a mile.
According to Navy Recognition, the 11th Soryu-class submarine, JS Oryu (SS-511), was launched at the Mitsubishi Heavy Industries shipyard in Kobe on October 4th. JS Oryu (SS-511) features one significant design upgrade: It is Japan’s first submarine powered by lithium-ion batteries.
JS Oryu (SS-511) is the 11th Soryu-class submarine built for the Japan Maritime Self-Defense Force (JMSDF): the 6th built by MHI, the other five ones having been built by Kawasaki Shipbuilding Corporation is the shipbuilding subsidiary of Kawasaki Heavy Industries. Oryu’s keel was laid in November 2015 and the submarine is set to be delivered to the JMSDF in March 2020.
The keel for the first submarine in the class, JS Soryu (SS-501), was laid down in March 2005. It was launched in December 2007 and commissioned in March 2009.
The latest Soryu class SSK JS Seiryu (SS-509) was commissioned with the JMSDF on 12 March 2018.
All submarines of the class are named after dragons. Soryū means Blue Dragon, Hakuryū (2nd in the class) White Dragon, Sekiryū (8th in the class) Red Dragon. Shoryu (10th in the class) Soar Dragon.
JS Oryu (SS-511) (おうりゅう or 凰龍 in kanji) means Dragon-Phoenix.
Twelve Soryu-class submarines are planned for the JMSDF. The eleventh and twelfth submarines will feature improved underwater endurance thanks to lithium-ion batteries. The class is an improved version of the Oyashio-class submarine. Soryu-class submarines are the world’s largest conventionally powered submarines. They have an excellent operational track record and are equipped with state-of-the art technologies, including Air-Independent Propulsion (AIP) systems that enable them to remain fully submerged for long periods of time, and advanced stealth technologies that make them more difficult to detect.
Compared to earlier submarines in the Soryu-class, Oryu doesn’t use lead-acid batteries but lithium-ion ones, designed by GS Yuasa. These high-performance batteries are said to store about double the power.
84 m/275.6 feet
9.1 m/29.9 feet
10.3 m/33.8 feet
8.4 m/27.6 feet
20 knots/23 mph/37 km/h
MHI Launched the 11th Soryu-class SSK JS Oryu (SS-511) for the JMSDF
The first Japanese-assembled F-35A was unveiled at the Mitsubishi Heavy Industries (MHI) Komaki South F-35 Final Assembly and Check Out (FACO) facility here on June 5, 2017. The Japan F-35 FACO is operated by MHI with technical assistance from Lockheed Martin and oversight from the U.S. Government.
Approximately 200 people attended the ceremony including Japanese and United States government and defense industry leaders. The ceremony highlighted the strong partnership between the Japanese Ministry of Defense, U.S. Department of Defense, MHI and Lockheed Martin.
Kenji Wakamiya, senior vice minister of defense; General Yoshiyuki Sugiyama, Japan Air Self Defense Force (JASDF) chief of staff; Lieutenant General Jerry Martinez, commander, U.S. Forces Japan and 5th Air Force; Vice Admiral Mat Winter, F-35 Program Executive Officer; Vice Admiral Dave Lewis, Defense Contract Management Agency Director; Naohiko Abe, MHI’s senior vice president and Integrated Defense & Space Systems president, and Orlando Carvalho, executive vice president of Lockheed Martin Aeronautics, attended the milestone event.
«Seeing the first Japanese built F-35A is a testament to the global nature of this program», said Vice Admiral Mat Winter, F-35 Program Executive Officer. «This state of the art assembly facility, staffed with a talented and motivated workforce, enables us to leverage industry’s unique talents and technological know-how to produce the world’s best multi-role fighter. The F-35 will enhance the strength of our security alliances and reinforce long-established bonds with our allies through training opportunities, exercises, and military-to-military events».
The Japanese Ministry of Defense competitively selected the F-35A as the JASDF’s next-generation air defense fighter in December 2011, with a Foreign Military Sales program of record of 42 F-35As. The first four JASDF F-35As were previously delivered from the Fort Worth, Texas, production facility. Subsequent deliveries of 38 F-35A aircraft will come from the FACO here in Japan.
Additionally, the U.S. Department of Defense selected the Nagoya FACO in 2014 for the North Asia-Pacific regional heavy airframe Maintenance Repair Overhaul & Upgrade (MROU) facility.
«Building upon our enduring relationship with Japanese industry, we are fully committed to our F-35 production partnership with MHI and our support to the Japan Ministry of Defense», Carvalho said. «The skilled workers who achieved this milestone know firsthand the F-35’s capability and how this aircraft will only strengthen the U.S.-Japan Security Alliance, thereby building upon Japan’s strategic vision to ensure the Alliance remains strong for decades to come».
The F-35 Lightning II is a next-generation fighter, combining advanced stealth with fighter speed and agility, advanced mission systems, fully fused sensor information, network-enabled operations and cutting-edge sustainment. More than 220 operational F-35s have been built and delivered worldwide and they have collectively flown more than 95,000 flight hours.
51.4 feet/15.7 m
14.4 feet/4.38 m
35 feet/10.7 m
460 feet2/42.7 m2
Horizontal tail span
22.5 feet/6.86 m
29,300 lbs/13,290 kg
Internal fuel capacity
18,250 lbs/8,278 kg
18,000 lbs/8,160 kg
70,000 lbs class/31,751 kg
Standard internal weapons load
Two AIM-120C air-to-air missiles
Two 2,000-pound/907 kg GBU-31 JDAM (Joint Direct Attack Munition) guided bombs
On April 22 Mitsubishi Heavy Industries, Ltd. (MHI) successfully completed the maiden flight of the «X-2», an Advanced Technology Demonstrator (ATD) jet.
The aircraft took off from Nagoya Airport and went through a series of trials to confirm basic maneuvers including climbing, descent and circling operations. After 23 minutes X-2 then landed at the Japan Air Self-Defense Force’s Gifu Air Base, some 50 km to the north.
After completing the maiden flight, the pilot, from MHI, described the flight experience as «extremely stable». «Control of the aircraft went exactly as in our simulated training sessions», he said, «and after piloting the aircraft I’m 100% positive the X-2 is magnificent and will meet the Ministry of Defense’s requirements».
The X-2 is a prototype stealth aircraft – the first in Japan to feature technology impeding its detection by radar – engineered for extremely high maneuverability. The prototype integrates an airframe, engines, and other advanced systems and equipment all adaptable to future fighters.
As the coordinating company of the X-2 development project, MHI has been developing the aircraft’s airframe since 2009 with cooperation provided by 220 domestic companies and guidance from Japan’s Acquisition, Technology & Logistics Agency (ATLA). In this way, world-class cutting-edge technologies developed in Japan are featured throughout the prototype unit.
Going forward MHI will continue to develop, manufacture and support the operation of defense aircraft incorporating the world’s leading technologies, thereby contributing to Japan’s national security.
Mitsubishi Heavy Industries, Ltd. (MHI) delivered the «Jinryu» (Benevolent Dragon) submarine to the Japanese Ministry of Defense (MOD) on March 7 in a ceremony held at the MHI Kobe Shipyard & Machinery Works’ No.3 pier in Kobe, Hyogo Prefecture. The «Jinryu» (SS-507) is the seventh Soryu-class submarine supplied to the Japan Maritime Self-Defense Force (JMSDF), and the fourth built by MHI. MHI also built the first Soryu-class submarine, and has produced a total of 26 submarines at the MHI Kobe Shipyard over the last 70 years.
The delivery ceremony was attended by a number of MOD officials including State Minister of Defense Kenji Wakamiya, JMSDF Chief of Staff Tomohisa Takei, and Acquisition, Technology and Logistics Agency Commissioner Hideaki Watanabe. MHI was represented by Hisakazu Mizutani, Executive Vice President of MHI and President & CEO of MHI Integrated Defense & Space Systems.
Soryu-class submarines are the world’s largest conventionally powered submarines. They have an excellent operational track record and are equipped with state-of-the art technologies, including Air-Independent Propulsion (AIP) systems that enable them to remain fully submerged for long periods of time, and advanced stealth technologies that make them extremely difficult to detect.
275.6 feet/84 m
30 feet/9.1 m
33.8 feet/10.3 m
Diesel-Stirling-electric, one shaft
6,000 kW/8,000 PS
20 knots/23 mph/37 km/h
Armament and other equipment
Torpedo tubes, snorkel, submarine sonar system, etc.