At first glance, the most obvious improvement on the Indian Navy’s first Project 15B guided-missile destroyer (DDG) INS Visakhapatnam is the inclusion of the TERMA/TATA Aerospace & Defence-supplied X-band Scanter-6002 multi-function surface-search radar that does away with the earlier Russia-origin 3TS-25E Garpun Bal-E (built by JSC Concern Granit-Electron), which still exists on board the Project 17 FFGs, Project 15 and Project 15A DDGs, plus the Project 1241RE Molniya FAC-Ms and Project 25A corvettes.
And above the helicopter hanger in the stern section can be the 12.7mm remote-controlled weapon stations that were supplied by Israel’s ELBIT Systems and the former Ordnance Factory Board (OFB).
So, the principal RF-based radars on board INS Visakhapatnam are the EL/M-2248 MF-STAR S-band multifunction active phased-array radar, the THALES-BEL RAWL-02/PLN-517/LW-08 L-band air-search radar and the Scanter-6002 surface-search radar that will provide fire-control cues for both the OTOBreda/BHEL 76/62 SRGM and the BrahMos-1 supersonic anti-ship cruise missiles.
The three Project 15A DDGs use the EL/M-2248 MF-STAR S-band multifunction active phased-array radars, THALES-BEL RAWL-02/PLN-517/LW-08 L-band air-search radars, and the 3TS-25E Garpun Bal-E surface-search radars for target engagement with BrahMos-1 supersonic anti-ship cruise missiles and for fire-control of the 76/62 SRGMs.
The six Project 1135.6 FFGs imported from Russia use the MR-760 Fregat M2EM D/E-band multifunction radars, 3TS-25E Garpun Bal-Es Mineral-ME radars for surface-search, and the Ratep JSC 5P-10E Puma fire-control system for AK-176 naval guns. The last is now being replaced by the Lynx-U2 NGFCS for fire-control of the retrofitted 76/62 SRGMs on board the three Batch-1 Project 1135.6 FFGs (after their mid-life refits).
The four Project 28 ASW corvettes make use of the Revathi S-band air-search radar (replacing the earlier MR-352 Positiv-E surface-search radars) and Lynx-U2 NGFCS (for the 76/62 SRGMs), as do the Project 1241RE Molniya FAC-Ms and three Project 25A corvettes.
The IAC-1 aircraft carrier uses the RAN-40L air-search radar supplied by SELEX Sistemi Integrati (subsidiary of the Leonardo Group) and the EL/M-2248 MF-STAR radar, while the seven Project 17A FFGs will have on board the EL/M-2248 MF-STARs and the 3-D all-digital LTR-25 L-band air-/surface-search radars supplied by Spain’s INDRA.