Rapid Fire
Project 17A: INS Himgiri & INS Udaygiri
- 28 Aug 2025
- 2 min read
Two advanced Nilgiri-class (Project 17Alpha (P-17A)) multi-mission stealth frigates, INS Udaygiri and INS Himgiri have been commissioned, marking a significant step in India's naval modernization
- Project 17A: P17A ships feature enhanced stealth capabilities compared to their predecessors P17 (Shivalik) class, with improvements in hull design and weapon systems.
- The seven ships under Project 17A, are INS Nilgiri, INS Udaygiri, INS Himgiri, INS Taragiri, INS Mahendragiri, INS Dunagiri, and INS Vindhyagiri.
- The Project 17A design incorporates ‘State of the Art’ weapons and sensors that include supersonic surface-to-surface missiles, medium-range surface-to-air missiles, and rapid-fire Close-in Weapon Systems.
- These multi-mission frigates are designed to operate in a ‘Blue Water’ environment, meaning they can handle both conventional and non-conventional threats within India's maritime interests.
- An Integrated Platform Management System (IPMS) is also installed to optimize the ship’s functionality and crew coordination.
- The ships are configured with Combined Diesel or Gas (CODOG) main propulsion plants, comprising a Diesel Engine and Gas turbine, driving a Controllable Pitch Propeller (CPP) on each shaft.
- INS Himgiri: First P-17A stealth frigate built by Garden Reach Shipbuilders & Engineers (GRSE).
- INS Udaygiri: Second P-17A stealth frigate built by Mazagon Dock Shipbuilders Ltd (MDL), also the 100th ship designed by Navy’s Warship Design Bureau.
- Capabilities: Equipped with BrahMos missiles, Barak-8 missiles, LRSAM, torpedoes, rocket launchers, advanced radars, and Shakti Electronic Warfare Suite.
- Legacy names: Both ships revive historic names of earlier INS Udaygiri (1976) and INS Himgiri (1974), which played key roles in Operation Pawan, Operation Cactus, Operation Sahayata and others.
- Project 17 Bravo (P-17B): In 2024 the Defence Acquisition Council approved Project 17 Bravo stealth frigates, the next phase after the Project 17A.
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