JAPAN / 日本

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Re: JAPAN / 日本

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They've basically removed the trapezoidal shaped upper flightdeck block from Kaga's bow and will change it for a rectangular one to allow F-35B takeoffs to be easier from a wider bow.


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Re: JAPAN / 日本

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Re: JAPAN / 日本

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Re: JAPAN / 日本

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Ships coming to Japan for International Fleet Review 2022.

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Re: JAPAN / 日本

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November 21st Japanese Mayo Aegis class destroyers Haguro and Maya launched their first SM-3 Block IIA to defeat medium and intermediate-range ballistic missiles, jointly funded and developed with the USN, test fired two missiles off Hawaii which saw a successful engagement of a T4-E an MRBM target missile (a three stage separating missile target with Kratos’ Oriole solid propellant rocket motor mounted atop two tandem USN surplus Mk-70 Terrier booster stages). The engagement involved the Cooperative Engagement Capability fitted on both ships, with the JS Maya detecting and tracking the missile target before the JS Haguro shot it down using the data from its sister ship.

Japan currently plans two new gen 20,000t Aegis destroyers, length 210 m, beam 20 m, crew 110 ?, using Lockheed's SPY-7 radar, not the Raytheon SPY-6 as fitted on the new USN 10,000t AB Aegis Flight IIIs.

PS North Korea November 18th launched what it claims is a new ICBM called the Hwasong 17 with purported ability to strike deep into the continental US.

https://www.defensenews.com/battlefield ... th-us-navy

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Re: JAPAN / 日本

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JCG MQ-9B SeaGuardian MALE UAV started operations


Japan Maritime Self-Defense Force (JMSDF) International Fleet Review
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Re: JAPAN / 日本

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Japan has selected Patria AMV XP as its new wheeled APC.
https://www.mod.go.jp/atla/pinup/pinup041209.pdf

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There are also other wheeled IFV program, which are considered to be of MHI design, based on Type-16 MCV. (see figure).

Not sure having two similar-level 8 wheeled APC/IFV with different base design is a good way to go...


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Re: JAPAN / 日本

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Artist image of new Aegis/SPY-7 20,000t two BMD cruisers taken from the Japanese 20th December Defense Programs and Budget of Japan, calls for a very ambitious commissioning date for both ships by 2028.

https://www.mod.go.jp/j/yosan/yosan_gai ... 221223.pdf
https://news.usni.org/2022/12/27/japane ... ense-ships
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Re: JAPAN / 日本

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https://english.kyodonews.net/news/2022 ... ncern.html

Japan and Britain will cooperate in promoting a new communications network that does not rely on specific companies' infrastructure in the wake of China's increasing presence in the field, sources familiar with the case said Wednesday.

By using Open RAN, or Open Radio Access Network, which has industry-wide standards that enable its interoperability between multiple vendors' equipment for cellular wireless networks, the two countries aim to avoid a situation in which Huawei Technologies Co. and other Chinese players control the flow of information.

According to the sources, Japanese and British companies are expected to begin technology sharing in 2023. Major Japanese technology firms working to implement Open RAN include NEC Corp. and major mobile carrier NTT Docomo Inc.
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Re: JAPAN / 日本

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NickC wrote: 28 Dec 2022, 15:58 Artist image of new Aegis/SPY-7 20,000t two BMD cruisers taken from the Japanese 20th December Defense Programs and Budget of Japan, calls for a very ambitious commissioning date for both ships by 2028.

https://www.mod.go.jp/j/yosan/yosan_gai ... 221223.pdf
https://news.usni.org/2022/12/27/japane ... ense-ships
Japanese ASEV (Aegis system-equipped vessel) whose mission is to defend against nuclear ballistic missile attacks from its near neighbour North Korea and China

Reported Mr. Masahisa Sato, foreign affairs and defense committee chairman of the ruling LDP party,the SPY-7 equipped Aegis ship will feature full ASW, AAW, cruising at 30+ knots with more than 200 VLS[maybe 300?]

It appears they looked at various options and chose a ship 210m/690ft length and with a large beam of 40 m / 131 ft [~20,000t] to give the stability to fit a very large/heavy array SPY-7 radar, surprised with its large beam that gives a l/b ratio of~ 5+ it can reach 30 knots, expect will require large power, planning for a small crew compliment of only 110, design and build in five tears

Assume main missiles will be the joint Japanese/US SM-3 IIA exo-atmospheric missiles and the SM-6 endo-atmospheric missile (one that remains within the earth's atmosphere, at an altitude below 100 km) and the with ability to counterattack with its new long range variant of the ~1,000 km Type 12 SSMs and in future a hypersonic missile in R&D. To fill all the 200+ VLS cells cost will be massive, £billion ?

PS Large BMD radars required for very high discrimination necessary to distinguish/target the warheads from decoys and nosecones etc of nuclear ballistic missiles, the US Navy have stated that radar sensitivity scales as a cube of the size of the radar aperture, and while improvements can be made to the T/R modules said this is a linear not a cubic relationship and only adds marginal capability on the order of +1 or 2 dB.
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Re: JAPAN / 日本

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Now, if the T-83 was to look like that, I think I would be OK if we only got 4 of them!
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Re: JAPAN / 日本

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I suspect when/if T83 comes to pass it will be as per usual under par in weapons load and ability against a real pear ,but with the headlines the most advanced the world bollox like they like to try to con the general public but not telling them we only have a couple and every other county even small ones have far bigger fleet lol,I really do think we are a show the flag no substance, fooling nobody military not the brilliant men an women in the forces but the clowns granting finance and dicision makers in this country,shame ,think the new Japanese missile destroyer will be an awesome piece of kit and the RN will be very envious

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Re: JAPAN / 日本

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NickC wrote: 31 Dec 2022, 13:19
NickC wrote: 28 Dec 2022, 15:58 Artist image of new Aegis/SPY-7 20,000t two BMD cruisers taken from the Japanese 20th December Defense Programs and Budget of Japan, calls for a very ambitious commissioning date for both ships by 2028.

https://www.mod.go.jp/j/yosan/yosan_gai ... 221223.pdf
https://news.usni.org/2022/12/27/japane ... ense-ships
Japanese ASEV (Aegis system-equipped vessel) whose mission is to defend against nuclear ballistic missile attacks from its near neighbour North Korea and China

Reported Mr. Masahisa Sato, foreign affairs and defense committee chairman of the ruling LDP party,the SPY-7 equipped Aegis ship will feature full ASW, AAW, cruising at 30+ knots with more than 200 VLS[maybe 300?]

It appears they looked at various options and chose a ship 210m/690ft length and with a large beam of 40 m / 131 ft [~20,000t] to give the stability to fit a very large/heavy array SPY-7 radar, surprised with its large beam that gives a l/b ratio of~ 5+ it can reach 30 knots, expect will require large power, planning for a small crew compliment of only 110, design and build in five tears

Assume main missiles will be the joint Japanese/US SM-3 IIA exo-atmospheric missiles and the SM-6 endo-atmospheric missile (one that remains within the earth's atmosphere, at an altitude below 100 km) and the with ability to counterattack with its new long range variant of the ~1,000 km Type 12 SSMs and in future a hypersonic missile in R&D. To fill all the 200+ VLS cells cost will be massive, £billion ?

PS Large BMD radars required for very high discrimination necessary to distinguish/target the warheads from decoys and nosecones etc of nuclear ballistic missiles, the US Navy have stated that radar sensitivity scales as a cube of the size of the radar aperture, and while improvements can be made to the T/R modules said this is a linear not a cubic relationship and only adds marginal capability on the order of +1 or 2 dB.
This reminds me of the USN idea a few years back of using the San Antonio class design as the bases for a BMD vessel, it was laughed at by many back then as just unaffordable yet here we with another nation looking to ho down a similar route

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Re: JAPAN / 日本

Post by R686 »

Jake1992 wrote: 01 Jan 2023, 20:22
NickC wrote: 31 Dec 2022, 13:19
NickC wrote: 28 Dec 2022, 15:58 Artist image of new Aegis/SPY-7 20,000t two BMD cruisers taken from the Japanese 20th December Defense Programs and Budget of Japan, calls for a very ambitious commissioning date for both ships by 2028.

https://www.mod.go.jp/j/yosan/yosan_gai ... 221223.pdf
https://news.usni.org/2022/12/27/japane ... ense-ships
Japanese ASEV (Aegis system-equipped vessel) whose mission is to defend against nuclear ballistic missile attacks from its near neighbour North Korea and China

Reported Mr. Masahisa Sato, foreign affairs and defense committee chairman of the ruling LDP party,the SPY-7 equipped Aegis ship will feature full ASW, AAW, cruising at 30+ knots with more than 200 VLS[maybe 300?]

It appears they looked at various options and chose a ship 210m/690ft length and with a large beam of 40 m / 131 ft [~20,000t] to give the stability to fit a very large/heavy array SPY-7 radar, surprised with its large beam that gives a l/b ratio of~ 5+ it can reach 30 knots, expect will require large power, planning for a small crew compliment of only 110, design and build in five tears

Assume main missiles will be the joint Japanese/US SM-3 IIA exo-atmospheric missiles and the SM-6 endo-atmospheric missile (one that remains within the earth's atmosphere, at an altitude below 100 km) and the with ability to counterattack with its new long range variant of the ~1,000 km Type 12 SSMs and in future a hypersonic missile in R&D. To fill all the 200+ VLS cells cost will be massive, £billion ?

PS Large BMD radars required for very high discrimination necessary to distinguish/target the warheads from decoys and nosecones etc of nuclear ballistic missiles, the US Navy have stated that radar sensitivity scales as a cube of the size of the radar aperture, and while improvements can be made to the T/R modules said this is a linear not a cubic relationship and only adds marginal capability on the order of +1 or 2 dB.
This reminds me of the USN idea a few years back of using the San Antonio class design as the bases for a BMD vessel, it was laughed at by many back then as just unaffordable yet here we with another nation looking to ho down a similar route
Yes I remember that. I think what they were referring to be the actual cost to fill out a 228-cell ship

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Re: JAPAN / 日本

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inch wrote: 01 Jan 2023, 20:03 I suspect when/if T83 comes to pass it will be as per usual under par in weapons load and ability against a real pear ,but with the headlines the most advanced the world bollox like they like to try to con the general public but not telling them we only have a couple and every other county even small ones have far bigger fleet lol,I really do think we are a show the flag no substance, fooling nobody military not the brilliant men an women in the forces but the clowns granting finance and dicision makers in this country,shame ,think the new Japanese missile destroyer will be an awesome piece of kit and the RN will be very envious
I would like think now they will be able to push for more with what has been happening recently - the T45 getting 24 CAMM in a few yes time ( 2026 ? onwards ) so will be able to load more longer range missiles - about time ! (could be better) & also the the T26 getting 48 CAMM alongside 24 mk41 from the outset is progress rather than vague " can be fitted with....at a later date " blah blah
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Re: JAPAN / 日本

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inch wrote: 01 Jan 2023, 20:03 I suspect when/if T83 comes to pass it will be as per usual under par in weapons load and ability against a real pear ,but with the headlines the most advanced the world bollox like they like to try to con the general public but not telling them we only have a couple and every other county even small ones have far bigger fleet lol,I really do think we are a show the flag no substance, fooling nobody military not the brilliant men an women in the forces but the clowns granting finance and dicision makers in this country,shame ,think the new Japanese missile destroyer will be an awesome piece of kit and the RN will be very envious
We spend more as a percentage of GDP on defence than Japan does.

And who is a “real” peer.

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Re: JAPAN / 日本

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SSN & SSBN cost a lot, i think a huge problem is short term cost cutting at the detriment of longterm efficiency....
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Re: JAPAN / 日本

Post by donald_of_tokyo »

NickC wrote: 31 Dec 2022, 13:19 download/file.php?id=3062
This figure says they are considering to make it more compact (the red notes). Just for clarity.

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Re: JAPAN / 日本

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donald_of_tokyo wrote: 04 Jan 2023, 00:20
NickC wrote: 31 Dec 2022, 13:19 download/file.php?id=3062
This figure says they are considering to make it more compact (the red notes). Just for clarity.
Understood various options looked at and as you say included less expensive ones, presumably variant of the current Aegis Mayo class destroyers, but my understanding as said previously "Mr. Masahisa Sato, foreign affairs and defense committee chairman of the ruling LDP party,the SPY-7 equipped Aegis ship will feature full ASW, AAW, cruising at 30+ knots with more than 200 VLS [maybe 300?]" confirmed the choice of the larger option for the 20,000t AESW ship - we will see if and when contract placed.

Naval News 3rd Jan reported that IJN in addition to the two 20,000t AESW will also procure two updated Aegis Mayo class destroyers, making total of ten Aegis destroyers plus the two ASEWs.

https://www.navalnews.com/naval-news/20 ... estroyers/

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Re: JAPAN / 日本

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It appeard Ja[pan is increasing its defence budget by nearly 50% to around $240Bn, as well as buying up to 500 Tomahawk cruise missiles.
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Re: JAPAN / 日本

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Lord Jim wrote: 11 Jan 2023, 21:14 It appeard Ja[pan is increasing its defence budget by nearly 50% to around $240Bn, as well as buying up to 500 Tomahawk cruise missiles.
Yes there looking to increase defence spending to 2% of there gdp. It’s currently 1.3%

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Re: JAPAN / 日本

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https://www3.nhk.or.jp/nhkworld/en/news/20230227_19/

The Japanese government plans to acquire up to 400 US-made Tomahawk cruise missiles to help boost counterstrike capabilities.

Members of the ruling coalition disclosed this during a directors' meeting of the Lower House budget committee on Monday.

They said 400 is the maximum number and the actual figure will be decided later.

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Re: JAPAN / 日本

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DSEI Japan 2023: JMSDF Programs with ATLA, MHI USV, JMU OPV
Day one at DSEI Japan 2023, the defense exhibition held near Tokyo.
In this video, we focused on Japan Maritime Self Defense Force programs with a tour of the ATLA booth, MHI USV and JMU OPV.

=====================

01:06 - Introduction about Japanese MoD's ATLA
01:39 - Upgraded Type 12 SSM (Anti-ship missile)
02:18 - Hypersonic missile research
03:53 - FFM Frigate
04: 15 - UNICORN antenna
04:40 - OQQ-25 variable depth sonar (VDS)
04:50 - OPY-2 X-band radar
05:27 - XLUUV project
06:48 - OZZ-5 UUV
07:35 - EMD Expendable Mine Disposal system
08:19 - Mitsubishi Heavy Industries Whale USV
10:13 - Japan Marine United (JMU) OPV

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Re: JAPAN / 日本

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DSEI Japan 2023: Weapon Systems for Japan Self Defense Forces
Day two at DSEI Japan 2023, the defense exhibition held near Tokyo.
In this video, Naval News' Japan correspondent, Yoshihiro Inaba, joins Editor in Chief Xavier Vavasseur to discuss some of the naval weapon systems on display for the Japan Self Defense Forces.

=====================



00:33 - Introduction in English and Japanese
01:01 - Discussion on the increase of Japan defense budget
01:44 - Kawasaki Heavy Industries new "Island Defense missile"
02:35 - Discussion on the presence of several different types of anti-ship missiles in JSDF inventory
05:00 - JSM Joint Strike Missile
06:45 - MQ-9B SeaGuardian of JCG, interest by JMSDF, MQ-9B with JSM and MQ-9B aboard Izumo
10:03 - Discussion on rumors of Tomahawk requirement for JMSDF
11:34 - Successful intercept test of Raytheon SM-3 by JMSDF
14:34 - Bofors 40MK4 gun system in use with the JCG
14:48 - BAE Systems Hyper Velocity Projectiles
15:08 - Leonardo Vulcano extended range ammunition
15:24 - Mitsubishi Heavy Industries 10 KW laser weapon demonstrator

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Re: JAPAN / 日本

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DSEI Japan 2023: SPY-7, ASEV, Landing craft for JGDSF, Patria, Safran, US-2 Seaplane
Day three at DSEI Japan 2023, the defense exhibition held near Tokyo.
In this video, Naval News' Editor in Chief Xavier Vavasseur takes you around the show floor and points out to some of the interesting systems and models on display.
=====================


00:45 - Lockheed Martin booth: F-110 and CSC frigates fitted with AEGIS and SPY-7 radar
01:02 - SPY-7 radar sub assembly suite and array
01:21 - Comment on ASEV - AEGIS System Equipped Vessel
01:46 - BMT Group booth: CAIMEN Landing Craft for JGSDF amphibious brigade
03:59 - Patria booth: SONAC ACS accoustic sweep
04:26 - Safran booth: NGDS decoy launching system
05:32 - Safran booth: Black Onyx inertial navigation system (INS) to be tested aboard Taigei submarine of JMSDF
06:05 - Safran booth: Optronic masts for submarines and discussions with Nikon
06:58 - Safran booth: EO/IR systems for surface ships: PASEO XLR, Vampir NG and VIGY 4
07:42 - Shinmaya booth: US-2 seaplane + comment about USSCOM / AFSOC requirement in the US
08:31 - Kawasaki Heavy Industries booth: EMALS catapult for Izumo-class

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