Lok Sabha Question No. 360 (STARRED), answered on 2016-12-09
Subject: Development of Naval Systems by DRDO
Ministry: DEFENCE
Asked by: Shrirang Appa Barne, SHRIKANT EKNATH SHINDE

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## GOVERNMENT OF INDIA MINISTRY OF DEFENCE

## DEFENCE RESEARCH & DEVELOPMENT ORGANISATION

## LOK  SABHA

## STARRED QUESTION NO.360

TO BE ANSWERED ON THE 9 TH  DECEMBER, 2016

## DEVELOPMENT OF NAVAL SYSTEMS BY DRDO

- *360.  SHRI  SHRIRANG APPA BARNE: DR. SHRIKANT EKNATH SHINDE:

Will the Minister of DEFENCE j{kk ea=h be pleased to state:

- (a) whether  the  Defence  Research  and  Development  Organisation  (DRDO)  has developed four Naval Systems for the Indian Navy and if so, the details thereof;
- (b) whether  these  systems  have  been  designed  and  developed  by  a  laboratory  of DRDO and if so, the details thereof;
- (c) whether these systems are likely to provide a fillip to self-reliance in this critical area of technology; and
- (d) if  so,  the  details  thereof  and  the  extent  to  which  the  underwater  surveillance capability of the Indian Navy will get a boost from these new systems?

## A    N    S    W    E    R

MINISTER OF DEFENCE                                   (SHRI MANOHAR PARRIKAR)

j{kk ea=h

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(a) to (d): A Statement is laid on the Table of the House.

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## STATEMENT REFERRED TO IN REPLY TO  PARTS (a) TO (d) OF LOK SABHA STARRED QUESTION NO. 360 FOR ANSWER ON 9.12.2016

Defence  Research  and  Development  Organisation  (DRDO)  has  developed many  systems  for  Indian  Navy.  Some  of  the  major  systems  are  Heavy  Weight Torpedo (Varunastra), Advanced Torpedo Defence System (Mareech), Multi Influence Ground Mines, etc. Recently, on 18 Nov 2016, Kochi based Naval Physical Oceanographic  Laboratory  (NPOL)  of  DRDO,  has  handed  over  the  following  four naval systems to Indian Navy:-

## Abhay (Compact Hull-Mounted Sonar for Small Ships & Shallow Water Crafts)

Induction of Abhay (by replacing the vintage Russian sonar) enables indigenous sonar system to be installed on small ships, thereby enhancing the ASW surveillance capability of the fleet to smaller vessel, like Shallows Water Crafts, Light Frigates & Patrol Vessels, which was hitherto limited to frigates and destroyers.

## HUMSA-UG  (Upgrade  for  the  Hull-Mounted  Sonar  Array  (HUMSA) Series of Sonar Systems for Ships)

It  enables  smooth  upgrade  of  the  capabilities  of  the  indigenously-developed legacy Sonar System HUMSA, by drastically minimizing the existing hardware and addressing technology obsolescence issues, which is currently operational on-board on 18 ships.

## NACS  (Near-field  Acoustic  Characterization  System  (NACS)  for  Ship Sonars)

It  provides  a  simple  and  operationally  efficient  means  to  determine  the frequency-dependent 3-D transmission and reception characteristics of the hullmounted  sonar  aiding  in  the  optimum  performance  and  maintenance  of  the sonar.

## AIDSS (Advanced Indigenous Distress Sonar System (AIDSS) for Submarines)

It  is  used  to  signal  that  a  submarine  is  in  distress  and  thereby  enable  quick rescue and salvage.  It is a life-saving alarm system designed to transmit sonar signals of pre-designated frequency and pulse shape in an emergency situation, so as to attract the attention of Rescue Vessel in the vicinity.

## The  extent  to  which  capability  of  the  Indian  Navy  will  get  a  boost  with  the induction of these systems are:

Three systems of Abhay are slated for installation on the Abhay Class of Ships. 7  systems  of  HUMSA-UG are proposed for  installation on the  Teg  Class  GClass  and  R-Class  ships.  4  systems  of  NACS  are  proposed  for  the  Kolkata Class  of  Ships.  9  systems  of  AIDSS  are  planned  for  the  Sindhu  Class Submarines (EKM Submarines). Induction of these will increase the underwater  surveillance  capability  of  Indian Naval ships.   All  these  Systems are to be productionised in India.

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