Defence

Extended Range Anti‑Submarine Rocket (ERASR)

Why in news?

India successfully conducted user trials of its indigenous Extended Range Anti‑Submarine Rocket (ERASR) from INS Kavaratti in July 2025. The trials mark a milestone in developing home‑grown anti‑submarine warfare capabilities.

What is ERASR?

  • ERASR is a next‑generation underwater weapon designed by the Defence Research and Development Organisation (DRDO) to neutralise enemy submarines and torpedoes.
  • The rocket employs a twin‑motor propulsion system, allowing it to operate in two modes: a short‑range motor for nearby threats and a long‑range motor for targets farther away.
  • It uses a locally developed electronic time fuze that ensures precise detonation at the desired depth and improves safety.

Features and significance

  • Range and precision: Capable of engaging underwater threats at different ranges with high accuracy.
  • Indigenous design: All components, including warheads and fuzes, are developed in India, boosting self‑reliance and reducing import dependence.
  • User‑friendly launcher: The rocket is compatible with indigenous launchers installed on frontline warships like the Kamorta‑class corvettes.
  • Strategic value: Enhances the Indian Navy’s anti‑submarine warfare capability, a key requirement for protecting naval assets in the Indian Ocean Region.
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