22.214.171.124. Non-installation of all the weapons and sensor systems.
Against the 18 weapons and sensors to be installed on ASW Corvettes, Audit observed that the two ASW Corvettes delivered were not fitted with X weapon and sensor systems viz. Equipment ‘A’ which included Equipment ‘B’ and Equipment ‘C’ to make the ASW Corvette perform to its full potential asenvisaged. The issues are discussed below:
a. Equipment ‘A’:
Equipment ‘A’ provided detecting, locating, tracking and classifying all types of sub-surface targets like torpedoes, mines, submarines, etc. to the corvettes.
Equipment ‘B’, which was a part of Equipment ‘A’, protected the corvette from torpedo attack by diverting the incoming torpedo towards the false target created by the Expendable Decoy Launcher.
Equipment ‘C’ is a launcher employed to decoy the torpedo away from the ship.
As per the Statement of Requirements (SOR) formulated by GRSE, the
Equipment ‘A’ was to detect dived conventional submarines and on motors up to a certain range in
active detection range; dived conventional submarines and on motors up to a certain range inpassive mode and torpedoes at certain range.
The induction of Equipment ‘A’ was planned (June 1998) under project Nagan
which was to be designed and developed by Naval Physical and Oceanographic Laboratory (NPOL), Cochin with M/s Bharat Electronics
Limited (BEL) as the production agency. The Research and Development (R&D) model productionised by BEL was installed on INS Sharada for
conducting User Evaluation Trials (UET). However, the Equipment ‘A’ did not meet the requirement of Naval Staff Qualitative Requirements (NSQR). In view of this, the project Nagan was shelved in July 2010.
In the meanwhile, IN conducted trials (2008) with L-3OS system which was successful. The trials conducted in 2010 and 2011 by BEL with L-3OS systems were successful. IN carried out trials with ATLAS system during 2011 and based on the trials, invited bids for Advanced Equipment ‘A’ (Equipment ‘A’-ADV) in which ATLAS was L1 and BEL was L2.
During the joint ship survey by BEL and ATLAS on the corvette during February and November 2014, it was found that the fitment of Equipment ‘A’of ATLAS needed major structuralmodification to the ship
. (!) Considering the cost implication of ATLAS Equipment ‘A’-ADV, BEL submitted (August 2015) its statement of case to IN for signing MoU with L-3OS. IHQ gave concurrence (November 2015) to
go ahead with L-3OS and to process the case with Department of Defence Production (DDP). Case was under process with DDP (January 2017).Development of Equipment ‘B’ was taken up by DRDO and as the user trials did not meet the NSQR, the same was not installed on the corvette. Equipment ‘C’ was deleted from the scope of IAC MOD-C since it failed in user trials.
DND stated (January 2017) that MoU between BEL and ToT partner was
required to ensure installation of the Equipment ‘A’ system and the same was awaited from BEL. It further stated that Equipment ‘B’ was envisaged to be integrated with Equipment ‘A’ and Equipment ‘C’ was part of Equipment ‘B’
which was under trials and hence, not supplied.Thus, due to IN’s failure to decide on suitable Equipment ‘A’ system despite successful completion of trials, Equipment ‘A’, Equipment ‘B’ and Equipment‘C’ were not installed on the corvettes delivered and hence, the ability of ASW Corvettes for submarine and torpedo detection was hampered. b. Equipment ‘D’Equipment ‘D’ is the corvette’s self defence system against missile attack.
Equipment ‘D’ provides double layered defence along with augmented
Report No.19 of 2017 26
capability to defend against salvo attack (multiple missile attack). X Equipment ‘D’ were envisaged on board of each Corvette for accommodating
certain Equipment ‘D’ missiles on board. Equipment ‘D’ was Buyer Furnished Equipment i.e., IHQ(N) had to supply this to GRSE as per the delivery
required by GRSE. Procurement and installation of the system on board was not included in the shipbuilding contract. GRSE had to cater only for space for installation of Equipment ‘D’ missiles on board.
*(So this indecision on choosing the system means extra cost at a later date!)
Equipment ‘D’ was to be developed by Defence Research and Development Organisation (DRDO), Hyderabad and manufactured by M/s Bharat Dynamics Limited. As DRDO could not develop Equipment ‘D’ in time, the fitment of Equipment ‘D’ was delinked from the project.
In accordance with IHQ(N) Memo of November 2006, Development systems and equipment were to be included for ships being designed by the Indian
Navy and in case the development was not successful or did not comply with the time schedule indicated, alternate proven equipment was to be nominated to ensure procurement and integration within the shipbuilding time frame. Non
fitment of the weapon systems was in violation of the IN’s instructions. DND stated (January 2017) that despite the best efforts, it was not possible to develop the Equipment ‘D’ and a draft Request for Indent (RFI) for progressing the case was formulated and forwarded for comments of external
agencies. Further, certain close in weapon systems were fitted to provide the Corvettes with Point Defence against anti-ship missiles.
Due to non availability of Equipment ‘D’, ASW Corvettes did not have double
layered defence along with augmented capability to defend against salvo