The following is a summary of Ryan White's UK based Naval Post, on March 24, 2021, report:
"Japan commissions JS Toryu, its Second Submarine Running on Li-Ion Batteries"
The Japanese Navy commissioned its 12th and final Soryu-class sub, JS Toryu, at KHI's Kobe shipyard on March 24, 2021. Toryu is assigned to the 2nd Submarine Flotilla, Kure naval base. Like the preceding Soryu-class sub JSS Oryu, Toryu use LIBs from GS Yuasa with no Stirling AIP. The LIBs are lithium nickel cobalt aluminum oxide (NCA). LIBs require less maintenance, have longer endurance or permit higher speed compared to LABs. [See "Key to" the SORYU Table below for expansions of all these acronyms.]
[Pete Comment: Soryu subs are budgeted by the Japanese Finance Ministry in Japanese Yen and may average the equivalent of US$550 million for the longterm and only customer, the Japanese Navy. Export prices would be much higher with the need for risk, technology transfer and profit margins. JS Toryu itself cost around US$584 million, probably due to the extra development and production costs of its LIBs.].
Specs for the Soryu include: 84m long, 9.1m beam, 2,900 tonnes (surfaced), about 4,200 tonnes (submerged), 65 crew. Max range 6,100nm at 6.5kn. 2 x 12V25/25SB Kawasaki diesels.
6 x 533mm torpedo tubes for Type 89 torpedoes, UGM-84 Harpoon AShMs and mines.
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Note: Naval Post is a UK based online defence media company, focused on Warships, Submarines, Naval Air, Marines, Coast Guard, and Naval Missiles. It started in 2016 with the name of “Naval News”. In 2021 it changed its name to Naval Post.
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SORYU Oyashio & Taigei TABLE
(with old Oyashio and new Taigei classes) as at March 25, 2021.
SS No. Diesel Type Motor | Build No Name | Pennant No. | MoF approved amount ¥ Billions FY | LABs, LIBs, AIP | Laid Down | Laun -ched | Commi ssioned | Built By |
5SS Oyashio | 8105 Oyashio | SS-590/ TS3608 | ¥52.2B FY1993 2 x 12V25/25S diesels for all Oyashio class (each diesel 2,000kW) | LABs only | Jan 1994 | Oct 1996 | Mar 1998 | KHI |
6SS-15SS Oyashios 10 subs SMC-7? | 8106 -8115 various | SS-591-600 | ¥52.2B per sub FY1994-FY2003 | LABs only | 15SS Feb 2004 | 15SS Nov 2006 | 15SS Mar 2008 | MHI & KHI |
16SS Dragon class Mk I | 8116 | SS-501 | ¥60B FY2004 all Mk.1 LAB+AIP Soryus have 2 x Kawasaki 4,240kW) + 4 AIP SMC-8 motor | LABs + AIP | Mar 2005 | Dec 2007 | Mar 2009 | MHI |
17SS | 8117 Unryū | SS-502 | ¥58.7B FY2005 | LABs + AIP | Mar 2006 | Oct 2008 | Mar 2010 | KHI |
18SS | 8118 Hakuryū | SS-503 | ¥56.2 FY2006 | LABs + AIP | Feb 2007 | Oct 2009 | Mar 2011 | MHI |
19SS | 8119 Kenryū | SS-504 | ¥53B FY2007 | LABs + AIP | Mar 2008 | Nov 2010 | Mar 2012 | KHI |
20SS | 8120 Zuiryū | SS-505 | ¥51B FY2008 | LABs + AIP | Mar 2009 | Oct 2011 | Mar 2013 | MHI |
21SS LIBs Concept Research Project | No 21SS built. It was an 8 year research project on LIBs. 1st LIBs sub launched was 27SS in 2018. | |||||||
22SS | 8121 Kokuryū | SS-506 | ¥52.8B FY2010 | LABs + AIP | Jan 2011 | Oct 2013 | Mar 2015 | KHI |
23SS | 8122 Jinryu | SS-507 | ¥54.6B FY2011 | LABs + AIP | Feb 2012 | Oct 2014 | 7 Mar 2016 | MHI |
24SS | 8123 Sekiryū | SS-508 | ¥54.7B FY2012 | LABs + AIP | KHI | |||
25SS | 8124 | SS-509 | ¥53.1B FY2013 | LABs + AIP | 22 Oct 2013 | 12 Oct 2016 | MHI | |
26SS | 8125 | SS-510 | LABs + AIP | 2014 | 6 Nov 2017 | KHI | ||
27SS a Soryu "Mk II" as it has LIBs. 1st Soryu Mk II | 8126 | SS-511 | SMC-8B motor Soryu Mk IIs may have twice as many batteries as Mk Is, ie 960 LIB-arrays in Mk IIs, other improvements | LIBs only (SLH type) | Nov 2015 | 4 Oct 2018 | 2020 | MHI |
28SS Soryu Mk II, final Soryu | 8127 | SS-512 | LIBs | Jan 2017 | KHI | |||
29SS 1st 3,000 tonne (surfaced) | 8128 Taigei | ¥76B FY2017 (Heisei 29) Higher ¥76B budget may be due to 1st of class many changes & new layout of LIBs. 2 x 12V25/25SB diesels or variants (totaling | SLH LIBs maybe 960 | month?in 2017 | 14 Oct 2020 | Mar 2022 | MHI | |
30SS 2nd Taigei Class | 8129? | SS-513 | SLH LIBs | 2018? | 2020? | 2022? | MHI? | |
01SS 3rd Taigei Class | SS-514 | ¥B? FY2019 (Reiwa 01) | SLH LIBs maybe 960+ | 2019? | 2021? | 2023? | KHI? | |
02SS 4th Taigei Class | 8130? | SS-515 | Impro ved SLH LIBs | 2020? | 2022? | 2024? | MHI? | |
03SS | 8131? | SS-516 | ¥B? FY2021 | LIBs | 2021? | 2023? | 2025? | KHI? |
04SS | 8132? | SS-517 | ¥B? FY2022 | LIBs | 2022? | 2024? | 2026? | MHI? |
05SS | 8133? | SS-518 | ¥B? FY2023 | LIBs | 2023? | 2025? | 2027? | KHI? |
06SS | 8134? | SS-519 | ¥B? FY2024 | LIBs | 2024? | 2026? | 2028? | MHI? |
07SS | 8135? | SS-520 | ¥B? FY2025 | LIBs | 2025? | 2027? | 2029? | KHI? |
08SS | 8136? | SS-521 | ¥B? FY2026 | LIBs | 2026? | 2028? | 2030? | MHI? |
¥***B = Billion Yen. MHI = Mitsubishi Heavy Industries, KHI = Kawasaki Shipbuilding Corporation of Kawasaki Heavy Industries.
Table by Anonymous and Pete