February 24, 2017

Philippine Navy - Acquiring New Ships Armed With Missiles and Torpedos

A South Korean HHI HDF-3000 frigate which carries missiles and torpedos, The Philippines is buying two. (Photo courtesy rhk111's Military and Arms Page)
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The Philippine Navy is gradually catching up to navies of its neighbours and resource competitors, Malaysia and Indonesia. Greater naval friction between these neighbours is likely as the potential prices of contested undersea oil-gas, and even fish prices and scarcity, rise.

The Philippine Navy’s (PN’s) recent interest in acquiring submarines from Russia (Kilos) or maybe China (S20s or S26s) should not be seen as a passing urge from a mere gun only second hand navy. Any future submarine purchase can be seen in the context of the PN’s new trend of paying serious money for new vessels armed with missiles.

In the last few years the PN has bought:

A.  3 x multi-purpose attack craft (MPAC) Mk. 3s, These patrol boats (coming from Israel around June 2017) are being armed with Spike-ER missiles with a 8 km range. The Spikes have roughly the weight and range of Hellfire missiles.

B.   much more substantially a contract (for a total of US$337 million) was concluded October 24, 2016 for 2 new frigates, which are derivatives of the HDF-3000 design. These are being built by Hyundai Heavy Industries, South Korea and are scheduled for delivery starting 2019. These frigates will carry (see and wiki's right sidebar) SAMs, Harpoon like SSM-700K Haeseong anti-ship missiles and lightweight torpedos.

C.  The PN will also mount Spike-NLOS missiles on its soon to be received AW-159 Wildcat naval helicopters. Also LWTs can be mounted. These helicopters could operate from:
-  the 3 old cutter-frigates
-  the new 11,583 ton, Tarlac class landing platform docks (LPDs) - see the photo below, or
-  air bases in critical places like Palawan Island which borders the highly contested Spratly Islands in
   the South China Sea.


The Philippine Navy's new 11,583 ton Tarlac class LPDs can carry helicopters armed with missiles and LWTs. (Photo courtesy Miguel de Guzman via philstar GLOBAL).  
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Pete

February 22, 2017

China - foreign Submarines & UUVs transiting South China Sea Must Surface

China has, unilaterally claimed "water areas" or "territorial waters" of the South China Sea within its "Nine dash line". (Map courtesy GeoGarage).
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In an excellent post that will create headaches for the US, Japanese and Australian navies, Chinese state media, Ecns.cn reports February 15, 2017 China may soon redraft its 1984 Maritime Traffic Safety Law to require:

“Foreign submersibles [ie. submarines and UUVs must] travel on the surface, display national flags and report to Chinese maritime management administrations when they pass China’s water areas”. Such waters are understood to include the South China Sea.

China’s Global Times adds:


“Foreign military ships that are approved to enter China's waters should apply for pilotage. Foreign ships that enter Chinese waters without approval will be fined 300,000-500,000 yuan ([US]$43,706-72,844) and those violating Chinese laws would be expelled, it said.”

COMMENT

China's $73,000 fines may be very reasonable compared to an SSK's or SSN's hourly running costs. Attention Commanders! Take wads of cash or don't leave home without your American Express cards.

Pete

February 21, 2017

Performance Table, Lithium-ion Batteries (LIBs) vs Lead-acid Batteries (LABs)

From Anonymous’s comments on February 12, 2017.

Thanks to Anonymous for estimating performance for a submarine that will have new Lithium-ion Batteries (LIBs) no AIP – see Table 1. The first such submarine can be called a “Soryu Mark 2” (see Table 2) and it is designated 27SS which is likely to be launched between October and December 2017.

Anonymous, in Table 1, then makes a traditional Lead-acid Batteries (LABs) only (no AIP) comparison. Japan’s Oyashio class (launched 1996 to 2006) were Japan’s last submarines that were LABs only. The Oyashios preceded the LAB-AIP Soryu Mark 1s (see Table 2).

LIBs/LABs Comparative Table 1.

Submarine/Measure
LIBs only Soryu Mark 2, eg. 27SS
LABs only Oyashio class
Nominal voltage per unit battery-module [1]
108V
2V
Max submerged period at 4 knots [2, 3]
7 to 9 days
3 to 3.5 days
Standard submerged period at 4 knots [4]
6 to 8 days
1 to 1.5 days
Standard period at 18 knots (within a longer mission submerged)
3 to 4 hours
1 hour
Battery Recharge times over 60 day mission
8 to 10 times
40 to 60 times
Battery Recharge periods (surfaced or snorting)
1 to 2 hours
5 to 10 hours

[1] Values are based on various pieces of data for LIBs and LABs. LIB-modules and LAB-modules are connected in parallel and in series, respectively. Example: total voltage of 100 LAB-module (2V) connected in series is 200V = 2V x 100.

[2] Data for LABs is based on various simulations of submarine propulsion.

[3] Data for LIBs is based on comparison with data for LABs.

[4] As complete discharge shortens the life of batteries, I assume 90% of LIBs are discharged and 30% of LABs.

SORYU-Oyashio TABLE 2 (as at February 21, 2017)

SS
No.
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
LABs only
 Jan 1994
Oct 1996
Mar 1998
 KHI
6SS-15SS
Oyashios
10 subs
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
Soryu Mk 1
8116
Sōryū
SS-501
¥60B FY2004
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
No
21SS
No 21SS built
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
Mar 2013
2 Nov 2015
Mar? 2017
KHI
25SS
8124
Seiryū
SS-509
¥53.1B FY2013
LABs + AIP
22 Oct 2013
12 Oct 2016
Mar? 2018
MHI
26SS
8125
SS-510
LABs + AIP
2014
Oct-Nov
Mar 2019?
KHI
27SS First
Soryu Mk 2
8126
SS-511
LIBs only
2015
Oct-Dec 2017
Mar
2020
MHI
28SS  Second
Soryu Mark 2
8127
SS-512
¥63.6B FY2016
LIBs only
2016?
2018?
Mar 2021?
KHI
29SS First of
New Class
?
?
¥76B FY2018
LIBs only
?
?
2023?
MHI?
Table courtesy of exclusive information provided to Submarine MattersLABs = lead-acid batteries, AIP=air independent propulsion, LIBs=lithium-ion batteries. ¥***B = Billion Yen.

Anonymous and Pete

February 20, 2017

Update on Australia’s SEA1180 Offshore Patrol Vessel (OPV) selection process

Damen's OPV 1800 (Artwork courtesy Damen) is a possibility for Australia's Offshore Patrol Vessel (OPV) competition. Damen also offers the OPV 1800 Sea Axe and the 90m Sigma class. Damen has been shortlisted by Australia  - as have Fassmer and also Lurssen.
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Australia’s SEA1180 future Offshore Patrol Vessel (OPV) selection process continues to steam ahead.  It was first announced April 18, 2016A 30 November 2016 Media Release announced a Request for Tender (RFT). Government requirements have been stressing:

-  the three shortlisted designers should devise Australian Industry Capability Plans to team up with
   Australian shipbuilders. Hence the designers are teaming:
   =  the Netherlands' Damen with Civmec
   =  Germany's Fassmer, with Austal, and
   =  Germany's Lurssen (a report February 18, 2017 that Lurssen) may team up with BAE Systems)
-  use of Australian made steel for the hull is important
-  probable displacement may be up to 2,000 tonnes

-  the order is for 12 vessels, which will begin with two built in Adelaide from 2018 and ten in
   Western Australia from 2020 (this looks messy!).

The OPVs will be used for border protection and other missions of greater range/endurance than the existing, smaller 300 tonne Armidale class patrol boats. The Armidales have suffered from aluminium hull cracking around the engine spaces, partly due to much greater use on illegal immigrant search than anticipated. Hence the new OPVs will have steel hulls.

Glorious photo (courtesy Cotecmar) of a Fassmer 80 OPV . Also a 90m OPV is a possibility.
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A Lurssen (or Luerssen) OPV-80. Some are already in our region in the Royal Brunei Navy (Darussalam class). There are also Lurssen OPV 85s and OPV 90s (Photo courtesy pinterest).
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The ambitiously tight selection and production deadlines may slip. Production in Adelaide (just two) and Western Australia (ten) also looks uneconomic and problematic.

New OPVs of up to 2,000 tonnes, replacing the old ones of 300 tonnes, will represent a major increase in RAN border protection capabilities. The emphasis will likely be on carrying illegal immigrants, over long ranges and a helicopter for reconnaissance/search and rescue, rather than carrying missiles for combat. 

Pete

February 17, 2017

Two types of Japanese Lithium-ion Batteries Being Considered

The video "Why Japan’s Soryu Class Submarines Are So Good "Black Dragon" was published on Oct 3, 2016. See it being launched in video, numbered SS-506. Good on Soryu specifications, modifications for Australia, and strategic value for Japan generally.
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Submarine Matters is not the only website writing about Lithium-ion Batties (LIBs) for submarine. Gordon Arthur, Asia-Pacific Editor for Shephard Media, wrote an excellent article in Shephard Media “Japan leads way with Li-ion submarines”.

That article features LIB performance and comparative information provided by Vice Admiral (Retired) Masao Kobayashi (see photo and career biodata). He is the former commander Japanese Navy’s Fleet Submarine Force. He spoke at UDT Asia (Singapore, 18 January 2017). Kobayashi’s information confirms the superiority of LIBs information provided by Anonymous sources to Submarine Matters over the last two years. New information in Gordon Arthur’s article includes:

27SS TO BE COMMISSIONED MARCH 2020

Japan's first LIB submarine, [that would be the first Soryu Mark 2, 27SS, under construction at MHI see SORYU TABLE] will be commissioned in March 2020 (no lead-acid batteries (LABs) or AIP.

THERE ARE TWO LIB TYPES FOR JAPANESE SUBMARINES

Kobayashi believes that there is no clear single lithium-ion solution as a submarine main battery with future submarines being optimised with different power source. Two LIB types for Japanese submarine use are available:

Lithium nickel cobalt aluminium oxide ( LiNiCoAlO2 ) known as “NCA” manufactured by GS Yuasa. For main traits scroll quarter way down at. The JMSDF will use NCA-type batteries. es. Kobayashi advised for mobile operations, for example, NCA batteries and diesel may be ideal.

and

Lithium-titanate ( Li4Ti5O12 ) known as “LTO”, from Toshiba. For main traits scroll a third way down at,. Kobayashi believes LTO types were offered to Australia for its SEA 1000, Future Submarine proposal. an ambush submarine would operate better on fuel cells, LTO and diesel.

Kobayashi advised the lowest-cost option may be LTO and diesel.

JAPANESE RESEARCH/TESTING OF SUBMARINE LIBS and AIP

Japan's LIBs research began in 1962. The first LIB for submarine was ready in 1974 but did not meet requirements (including cost). Fuel cell AIP technology was not yet mature so Japan turned to Stirling AIP. From 1991-97 (Stirling?) AIP was (land tested?) before being installed into a Harushio-class (probably JDS Asashio TSS-3601) submarine in 2000-01 for trials.

“Meanwhile, tests on Li-ion batteries continued to the point that the JMSDF asked for a Li-ion-powered Soryu-class boat [27SS] in its FY2015 budget request.”

SEE GORDON ARTHUR’S WHOLE ARTICLE HERE
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PART OF SUBMARINE MATTER’S OUTPUT ON SORYU PRICING, ENINEERING, MARKETING AND TACTICS INCLUDES:






March 9, 2016 Inside the Soryu Submarine, Rare Diagram, Photos and Translations http://gentleseas.blogspot.com.au/2016/03/we-all-live-in-black-gray-submarine.html


Pete