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About The Varunastra

Context:

Indigenously designed and developed heavy-weight torpedo (HWT) Varunastra was recently successfully test-fired with a live warhead against an undersea target by the Indian Navy.

Relevance:

GS III: Science and Technology

Dimensions of the Article:

  1. About Varunastra
  2. Features of Varunastra
  3. Guidance and Technology

About Varunastra:

  • Varunastra is an anti-submarine torpedo designed and developed by the Naval Science and Technological Laboratory (NSTL) under the Defence Research and Development Organisation (DRDO) in Vizag, India.
  • It is manufactured by Bharat Dynamics Ltd (BDL).
  • The torpedo is ship-launched, heavy-weight, and electrically-propelled, specifically designed to target quiet submarines in both deep and shallow waters, even in intense counter-measures environments.

Features of Varunastra:

  • Length: 7.78 meters (25.5 feet)
  • Diameter: 533.4 mm (21.00 in)
  • Launch Platforms: Surface ships and submarines capable of firing heavy-weight torpedoes
  • Speed: Excess of 40 knots (74 km/h; 46 mph)
  • Range: 40 km (25 mi)
  • Weight: Approximately 1.5 tonnes
  • Warhead: 250 kg (550 lb) high-explosive
  • Maximum Operating Depth: 600 meters (2,000 ft)
  • Long-range capability with multi-maneuvering capabilities

Guidance and Technology:

  • Varunastra employs an advanced guidance system that includes active-passive acoustic homing, wire guidance, and GPS/NavIC satellite guidance.
  • It features conformal array transducers, allowing it to have a wider viewing angle compared to most conventional torpedoes.
  • The torpedo utilizes an advanced autonomous guidance algorithm with low drift navigational aids. • It is equipped with an insensitive warhead suitable for various combat scenarios.
  • Varunastra also incorporates a GPS-based locating aid.

-Source: The Hindu


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