Shivalik-class frigate

INS Satpura (F48) at Malabar 2012
Class overview
Name:	Shivalik class
Builders:	Mazagon Dock Limited
Operators:	Indian Navy
Preceded by:	Talwar class
Succeeded by:	Project 17A class frigate (planned)
Cost:	₹2,300 crore (US$360 million)
Planned:	3
Completed:	3
Active:	3
General characteristics
Type:	Guided-missile frigate
Displacement:	6,200 tonnes (6,100 long tons; 6,800 short tons) full load
Length:	142.5 m (468 ft)
Beam:	16.9 m (55 ft)
Draught:	4.5 m (15 ft)
Installed power:	2 × Pielstick 16 PA6 STC Diesel engines 15,200 shp (11,300 kW) 2 × GE LM2500+ 33,600 shp (25,100 kW)
Propulsion:	boost turbines in CODOG configuration.
Speed:	32 knots (59 km/h; 37 mph) 22 knots (41 km/h; 25 mph) (diesel engines)
Range:	In excess of 5,000 nautical miles (9,000 km) at 18 kn (33 km/h)
Complement:	257 (35 officers)
Sensors and processing systems:	1 × MR-760 Fregat M2EM 3-D radar 4 × MR-90 Orekh radar 1 × Elta EL/M-2238 STAR 2 × Elta EL/M 2221 STGR 1 × BEL APARNA HUMSA (hull-mounted sonar array) ATAS/Thales Sintra towed array systems
Electronic warfare & decoys:	BEL Ajanta electronic warfare suite
Armament:	Anti-air missiles: 32-cell VLS launched Barak 1 missiles 24 × Shtil-1 medium range missiles Anti-ship/Land-attack missiles: 8 × VLS launched Klub, anti-ship cruise missiles or 8 × VLS launched BrahMos, anti-ship and land-attack cruise missiles Guns: 1 × OTO Melara 76 mm naval gun 2 × AK-630 CIWS Anti-submarine warfare: 2 × 2 DTA-53-956 torpedo launchers 2 × RBU-6000 (RPK-8) rocket launchers
Aircraft carried:	2 × HAL Dhruv or Sea King Mk. 42B helicopters.

The Shivalik class or Project 17 class is a class of multi-role frigates in service with the Indian Navy. They are the first stealth warships built in India. A total of three ships were built between 2000 and 2010, and all three were in commission by 2012.

The Shivalik class, along with the seven Project 17A frigates currently being developed from them, are projected be the principal frigates of the Indian Navy in the first half of the 21st century. All ships of the class were built by Mazagon Dock Limited. The class and the lead vessel have been named for the Shivalik hills. Subsequent vessels in the class are also named for hill-ranges in India.

Originally conceived as a successor to the Talwar-class frigates, the Shivalik-class frigates feature improved stealth features and land attacking capabilities.

Project 17 was conceived in the 1990s to meet the Indian Navy's need for a class of stealthy frigates that were to be designed and built in India. The Directorate of Naval Design (DND)'s specifications for the project called for a class of "5000 ton stealth frigates (Project 17) incorporating advanced signature suppression and signature management features". The first three units were formally ordered by the Indian Navy in early 1999.

Shivalik's design embodies many firsts in Indian ships. Shivalik is the first Indian naval vessel to use a combined diesel or gas (CODOG) propulsion system. The CODOG gearboxes were designed and built by Elecon Engineering.

The main features of the class are its stealth characteristics and land-attack capability. The ships incorporate structural, thermal and acoustic stealth features. The vessels use 10 gigabit LAN for their network.

There has also been an increased emphasis on crew comfort in this class of ships with more spacious accommodation being provided. Also, INS Shivalik is the first ship in the Indian Navy with chapati- and dosa-makers on board.

...
Wikipedia