This website has looked at many Asia-Pacific submarine forces, including those of:
- Australia - http://gentleseas.blogspot.com.au/2014/01/balanced-article-on-aus-future-sub.html
- Singapore - http://gentleseas.blogspot.com.au/2013/12/singapore-buying-two-hdw-218sg.html,
- Vietnam - http://gentleseas.blogspot.com.au/2014/01/vietnams-first-kilo-submarine-arrives.html
Malaysia - http://gentleseas.blogspot.com.au/2009/09/malaysias-first-ever-submarine-scorpene.html
Though reportedly refurbished it is unclear whether KRI Cakra or Nanggala are operational. Submarines have a limited service life of usually 30 years or less. This is due to salt water induced corrosion, expansion/contraction causing metal fatigue, other technical problems and obsolescence compared to other submarines. The latter is particularly regarding stealthy characteristics (eg. acoustic noise). So Indonesia has been casting around for replacements for her 36 year old subs.
A June 23, 2009 article by Richard A. Bitzinger (Air-Independent Powered Submarines in the Asia-Pacific: Proliferation and Repercussions, page 3, at http://www.isn.ethz.ch/Digital-Library/Publications/Detail/?ots591=0c54e3b3-1e9c-be1e-2c24-a6a8c7060233&lng=en&id=102465 ) also indicates:
"Indonesia had once considered acquiring several Russian submarines, but this deal fell apart over infrastructure financing ([Indonesia] wanted to use Russian export credits to build a sub[marine] base, which [Russia] refused to fund)."
Note that in late 2011 it was apparent Russia had lost in Indonesia's selection process for three NEW submarines. Indonesia announced it would buy three South Korean "Improved Chang Bogo Class" variants of the German HDW 209 design. One of the Chang Bogos would be built in Indonesia: see http://gentleseas.blogspot.com.au/2014/02/indonesia-to-build-chang-bogo-submarine.html of February 18, 2014 and
By late 2013 Indonesia was again considering whether to buy Kilos or a proposed-advanced Russian development of the Kilo called the Amur Class. On December 7, 2013 the Jakarta Post reported the following [I've bolded interesting parts] http://www.thejakartapost.com/news/2013/12/07/ri-looks-russia-submarines-with-multi-role-missile-systems.html :
"RI [Indonesia] looks to Russia for submarines with multi-role missile systems"
Indonesia is in talks with Russia on the purchase of a number of Kilo Class submarines, as the country expands its deterrent capabilities in anticipation of future regional disputes.
Defense Minister Purnomo Yusgiantoro said on Friday that a team of officials, led by Navy chief of staff Adm. Marsetio, would head to Russia at the end of this month to initiate a deal and assess the technical capabilities of the arsenal.
“There is a plan for a massive build-up of our submarine fleet,” Purnomo said in a press conference after an hour-long closed-door meeting with Russian Ambassador to Indonesia and ASEAN Mikhail Galuzin.
Purnomo said he could not provide more details as the ministry was still awaiting reports filed by Marsetio regarding his planned visit to Russia. “Further to his report, we can then decide whether to buy new submarines or modernize used ones.”
According to Marsetio, Indonesia required “at least one submarine to cover each sea choke point” (a strategic narrow point of passage).
He said in total, the country needed a minimum of 12 submarines, as laid out in the Defense Ministry’s Minimum Essential Force strategy.
The ministry refused to detail the allocated budget for the submarines.
Between 2008 and 2013, defense spending has increased by an average 22 percent to Rp 81.5 trillion this year, according to the Finance Ministry. The budget is slated to rise to Rp 83.5 trillion next year.
The planned submarine purchase will be in addition to the three [Chang Bogo] U-209 submarines currently being built by South Korea’s Daewoo Shipbuilding and Marine Engineering (DSME) and state-owned shipyard PT PAL Indonesia.
The three submarines will be delivered between 2015 and 2016, and will add to the existing two [HDW 209 Class. Jakarta Post wrongly said the were "Kilo Class"] submarines procured in 1978 from the former West Germany.
Purnomo said the ministry’s interest in Russian submarines was based on their advanced cruise-missile system, with which they can accurately target an object at a range of 300 to 400 kilometers.
Submarines are known to be effective war machines that can act as a deterrent because of their capacity for stealth. The ministry is also considering a number of weaponry options to be fitted on the existing submarines, such as procuring the Klub-S [or "Club S" "SS-N-27A" with the NATO reporting name of "Sizzler"] missile system, as well as fitting them with the supersonic, anti-ship Yakhont missile [aka P-800 Oniks NATO reporting name " .
Indonesia has a long history of operating submarines from the former Soviet Union, now Russia. In 1967, it acquired 12 Whiskey Class submarines from the Soviet Union.
The new submarines may well be housed at a newly established naval base in Palu, Central Sulawesi, of which only 2.8 hectares of its total 13 hectares have so far been developed.
Natural protection against extreme ocean currents is also considered to be a necessary requirement for a submarine base.
The Palu Naval Base will in the future not only serve as a forward base but also a main naval base [see more information on Palu Naval Base at http://gentleseas.blogspot.com.au/2014/01/southeast-asian-states-buying.html ]..." ENDS
In any submarine purchase the cost of training and maintaining multiple crews is high. The program cost of maintenance, basing, spares and upgrades, over and above upfront purchase price, must also be considered. Some Indonesians may have visions of an Indonesian Navy operating more than 10 submarines. This may be unrealistic given the problems Indonesia has had fully utilising and maintaining the current two submarines (Cakra Class).
A similar situation exists in Australia. We can only man around three submarines of six available - but our Admirals and Defence Department wish to expand the fleet to a (probably unrealistic) twelve subs.
Indonesia increasing to three submarines from the current two sounds more likely in terms of naval budget and Indonesia's economic growth.
Submarines provide a relatively inexpensive (asymmetric) way to undertake blue water tasks. Their stealth makes up for the raw combat power of more numerous blue water surface ships (which are greater in tonnage and cost). Indonesia's submarines would represent the major means to wage medium intensity (conventional) war at sea - as well as peacetime intelligence gathering/counter-piracy/counter-terrorism.
- the Bung Tomo class corvettes - built in 2001-2002 and commissioned into the Indonesian Navy in 2014.
- the six Ahmad Yani class frigates were originally launched in Dutch service in the 1960s and commissioned in the Indonesian Navy in 1986.
Under Indonesia's new President Joko Widodo (appointed October 2014) Indonesia is also commissioning stealth trimaran patrol craft KCR-60/KCR-40 missile attack craft also at - see August 7, 2015 update) and AS565 Panther helicopters with anti-submarine warfare (ASW) capabilities.
Also see Indonesian Navy Submarine details here: http://en.wikipedia.org/wiki/Current_Indonesian_Navy_ships#Submarines