In News:

The Defence Research and Development Organisation (DRDO) and the Indian Navy successfully conducted flight trials of the indigenous Naval Anti-Ship Missile – Short Range (NASM-SR) with a ‘Man-in-Loop’ capability from a Seaking 42B naval helicopter at the Integrated Test Range (ITR), Chandipur.

Key Features and Capabilities:

• Man-in-Loop Functionality:
  • Provides real-time human intervention during flight.
  • Enables in-flight retargeting by transmitting live seeker images to the pilot through a high-bandwidth two-way data link.
  • Offers tactical flexibility in selecting and engaging specific targets among multiple options.
• Guidance and Navigation:
  • Launched in Bearing-Only Lock-On After Launch (BOLOAL) mode.
  • Equipped with an Indigenous Imaging Infra-Red (IIR) Seeker for terminal phase guidance.
  • Uses an Indigenous Fiber Optic Gyroscope-based Inertial Navigation System (INS) and a Radio Altimeter for accurate mid-course and low-altitude navigation.
• Design and Control:
  • Features Electro-Mechanical Actuators and Jet Vane Control for enhanced maneuverability.
  • Integrated avionics module, thermal batteries, and PCB warhead support precise targeting and mission efficiency.
• Stealth and Strike Capability:
  • Operates in Sea-Skimming Mode to evade radar detection.
  • Demonstrated a direct hit on a small ship target at its maximum range during trial.
• Propulsion:Powered by solid propulsion, featuring an in-line ejectable booster and long-burn sustainer.

Development and Significance:

• Jointly developed by DRDO and the Indian Navy.
• Key DRDO labs involved:
  • Research Centre Imarat (RCI)
  • Defence Research and Development Laboratory (DRDL)
  • High Energy Materials Research Laboratory (HEMRL)
  • Terminal Ballistics Research Laboratory (TBRL)
• Marks India’s capability in indigenous anti-ship missile systems with advanced features like man-in-loop control and high-precision targeting.
• Enhances India’s naval warfare and coastal defense capabilities, aligning with Atmanirbhar Bharat in defense manufacturing.