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An update on Indian Kilo Class Submarines

kurup

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The Blind Leading The Blind

This is what ‘desi’ broadcast TV channels like HEADLINES TODAY have been practicing over the past 48 hours. For instance, certain news-anchors of this channel have claimed that “all existing Type 877EKM Kilo-class SSKs are in a decrepit state, they are not seaworthy, that most of their 25-year shelf-lives and life-cycles are over,” and therefore they are all “floating coffins”. Facts, however, tell another story altogether. For, it is downright criminal to claim that these SSKs are using batteries with expired shelf-lives. In the case of INS Sindhuratna S-59, which recently underwent an unscheduled short-refit, it was using the 240 units of batteries (costing Rs.11 crores in all and possessing 40% of residual life) that had been removed from INS Sindhukesari S-60 since the latter is presently undergoing a short-refit.



To date, all eight surviving Kilo-class SSKs use batteries made by EXIDE Industries and such batteries, in production since the early 1990s, have also been exported to Algeria and Iran. EXIDE also supplies batteries for the four IN-operated Class 209/Type 1500 SSKs.

(see:http://www.exideindustries.com/corporate/business/submarine)

About five years ago, another India-based battery manufacturer—HBL Power Systems Ltd (see http://www.hbl.in/defence.asp)--which by then was already supplying batteries for IN-owned torpedoes of Russian and Italian origin as well as for all DRDO-developed tactical and strategic missiles, approached Indian Navy HQ and requested it to certify its newly-developed submarine batteries for usage. When IN HQ refused, HBL filed a case in the Delhi High Court against the IN. The Ministry of Defence (MoD) then told Justice Katju (who was then hearing the case) that since the IN already had a long-term contract with EXIDE for procuring submarine batteries, it will not consider a competitive procurement scenario. Furthermore, since the IN had only a single set of batteries on hand that was meant for installation on board INS Sindhurakshak S-63 (which was then due to proceed to Zvezdochka State Machine-Building Enterprise at Severodvinsk for her medium-refit), it could not spare this set for the sake of holding competitive field evaluation trials along with the set of batteries built by HBL. Justice Katju, however, stated that this was simply not on and consequently ruled in favour of HBL. The MoD then filed an appeal with the Supreme Court against the Delhi High Court’s ruling and argued that any delays encountered in the delivery of batteries meant for INS Sindhurakshak will only severely compromise national security. Fortunately for the MoD, the Supreme Court quashed Justice Katju’s earlier ruling and delivered a verdict in favour of the MoD, much to the IN’s relief.

Coming now to the present-day state of the eight surviving Type 877EKM SSKs, Russia’s Rubin Central Design Bureau for Marine Engineering has confirmed to me that the authorised total technical service life of each such SSK is not 20 years or 26 years as has been claimed by several retired IN officials over the past few days, but 35 years. Furthermore, each such SSK undergoes only one medium refit (inclusive of a mid-life upgrade) once after completing 13 years of service, and on its 26th year in service, it will undergo a service life-extension programme (SLEP) or a long-refit (inclusive of further upgrades) so that it will remain in service for a total period of 35 years.

INS Sindhughosh S-55, whose keel was laid on May 29, 1983, was launched on July 29, 1985 and was commissioned on November 25, 1985 and it was subjected to a medium-refit and was also upgraded to Project 08773 standard between 2002 and 2005. INS Sindhudhvaj S-56, whose keel was laid on April 1, 1986, was launched on July 27, 1986 and was commissioned on November 25, 1986. INS Sindhuraj S-57, which was commissioned on September 2, 1987, was subjected to a medium-refit and was also upgraded to Project 08773 standard between 1999 and 2001. INS Sindhuvir S-58, which was commissioned on December 25, 1987, was subjected to a medium-refit and was also upgraded to Project 08773 standard between 1997 and 1999. INS Sindhuratna S-59, which was commissioned on August 14, 1988, was subjected to a medium-refit and was also upgraded to Project 08773 standard between 2001 and 2003. INS Sindhukesari S-60, which was commissioned on October 29, 1988, was subjected to a medium-refit and was also upgraded to Project 08773 standard between 1999 and 2001. INS Sindhukirti S-61, which was commissioned on October 30, 1989, has been declared as a writeoff. INS Sindhuvijay S-62, which was commissioned on October 27, 1990, was subjected to a medium-refit and was also upgraded to Project 08773 standard between 2005 and 2007. INS Sindhurakshak S-63, which was commissioned on October 2, 1997, was subjected to a medium-refit and was also upgraded to Project 08773 standard between August 2010 and January 2013INS. Next in line for a medium-refit and upgrading to Project 08773 standard by the Zvezdochka State Machine-Building Enterprise is INS Sindhushastra S-64, which was commissioned on May 16, 2000.

Between 1997 and 1999, INS Sindhuvir was retrofitted with the LAMA-EKM AICS integrated console and the PIRIT control system, along with a loop antenna for VLF communications that was sourced from France’s NEREIDES. These were also installed on board INS Sindhuratna between 2000 and 2002, in addition to the Apassionata-EKM.1 integrated navigation system (using SAGEM's SIGMA 40 RLG-INS) and the Calibre-PLE fire-control system associated with the Club-S family of precision-guided munitions (3M-14E land-attack cruise missile and 3M-54E anti-ship cruise missile).

Between 2002 and 2005, INS Sindhughosh incorporated all of the above, plus the DRDO-developed and BEL-made USHUS cylindrical-array bow-mounted sonar, CCS Mk2 composite communications system and a SIRS radiation monitoring system). Between 2005 and 2008, INS Sindhuvijay incorporated all of the abov e-mentioned enhancements along with a DRDO-developed and BEL-built ‘Porpoise’ ESM suite, MCA external antenna, York-built cooling machines, WAAS-built C-310 torpedo countermeasures and their BDL-built dispensers, and Sulzer-built high-pressure air compressors). An identical fitment was carried out on INS Sindhurakshak (containing 12 India-origin systems installed) between 2010 and 2013 by Zvezdocka, which deployed more than 200 workers in three shifts to complete each of the refits in two years.

Thus, of the five Type 877EKM SSKs upgraded so far to Project 08773 standard at an aggregate cost of Rs1,560 crore (or an average of US$156 million per unit), four of them were armed with 3M-14E and 3M-54E missiles.



For helping the IN’s naval dockyards to undertake the periodic short-refits, SUDOEXPORT has facilitated and overseen the ToT to several India-based MRO companies, some of which are highlighted below.









INS Sindhukirti was ripped open in 2004 without Russian approval/licence by the Vizag-based Hindustan Shipyard Ltd (HSL). While that was the easy part, putting it back together was far more complex and beyond the capability of HSL. By 2008 the INS Sindhukirti had become the IN’s ‘dry-dock queen’. HSL had signed a contract on October 3, 2006 with IN for the medium-refit plus upgrade of this SSK. In this regard, contracts were concluded with Rosoboronswervice India and SUDOEXPORT for material supplies as well as for turn-key modernisation works. As per the planned schedule, HSL was to have: completed the SSK’s degutting by May 2007, completed blasting on the entire hull structure for defect survey by February 2008, completed the removal of hard-patches from all six compartments, commissioned two pipe-bending machines, completed qualifying HSL’s welders to take up repairs on hull structures, and receive all related technical documentation from Russia by May 2008. Officially, INS Sindhukirti, for whose medium-refit plus upgrade the IN had already paid Rs650 crore, was to re-enter service back in 2010. But till this day the medium-refit work—where the SSK is stripped of all equipment, her hull inspected for wear-and-tear and machinery replaced—awaits completion and the IN therefore has classified this SSK as a permanent writeoff.

As part of the SLEP for the remaining eight Type 877EKM SSKs, the IN in future plans to equip them with thin-line towed-array sonars as well as new-generation optronic periscopes.

TRISHUL: The Blind Leading The Blind
 
. . . .
Truth often lies somewhere in between two stated and purported extremes !!!
 
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