Nilgiri-class Frigate (2019)

The Project 17A Nilgiri-class frigate is a follow-on of the Project 17 Shivalik-class frigates for the Indian Navy. A total of seven ships will be built at Mazagon Dock and GRSE. The construction of the first ship is expected to start by early 2017 and is expected to be launched by 2020, after the shipyards are upgraded to incorporate modular construction techniques.

The anticipated cost for each vessel is above ₹4,000 crore (US$624 million) and the total deal is expected to be worth more than ₹6,400 crore (US$998 million). The vessel will incorporate the latest stealth features. The first ship is expected to roll out by 2022.

Specifications

• Type: Frigate
• Service Period: 2022-
• Characteristics:
  • Length: 488 feet 10 inches (149 meters)
  • Beam: 58 feet 5 inches (17.81 meters)
  • Draft: 17 feet 2 inches (5.23 meters)
  • Depth: 32 feet 6 inches (9.91 meters)
  • Displacement: 6,560 tons
• Crew: 226
• Propulsion:
  • 2 x General Electric LM2500 gas turbines, 54,000 shp
  • 2 x MAN Diesel 12V28/33D STC (6,000 kW each)
• Range: 5,500 nautical miles (10,186 kilometers) at 18 knots (33.34 km/h)
• Speed: 30+ knots (55.56 km/h)
• Sensor Suite:
  • IAI EL/M-2248 MF-STAR S band AESA radar
  • Indra LTR-25 Lanza Surface Search Radar
  • BEL HUMSA-NG bow sonar
  • CMS-17A Combat Management System
• Countermeasures:
  • BEL Ajanta EW suite
  • NSTL Mareech torpedo defence system
  • 4 x Kavach decoy launchers
• Armament:
  • 1 x 5"/62-caliber Mk.45 Mod 4 lightweight naval gun
  • 1 x 40-cell VLS (fires Barak-8 SAMs and Brahmos AShMs)
  • 2 x 12.75" triple torpedo tubes
  • 2 x RBU-6000 ASW rocket launchers
  • 2 x AK-630M CIWS
• Aircraft Carried: 2 x HAL Dhruv or Westland Sea King Mk.42B maritime helicopters

Unit Run

• INS Nilgiri (F57)
• INS Himgiri (F58) - fitting out
• INS Taragiri (F58) - fitting out
• INS Udaygiri (F60) - fitting out
• INS Vindhyagiri (F61) - under construction
• INS Dunagiri (F62) - fitting out
• INS Mahendragiri (F63) - under construction