Naval Anti-Ship Missile Short Range (NASM-SR)

February 27, 2025

Recently, the Defence Research and Development Organisation (DRDO) and the Indian Navy successfully conducted flight trials of the Naval Anti-Ship Missile Short Range (NASM-SR) at the Integrated Test Range in Chandipur, Odisha. This milestone marks advancement in India’s defence capabilities. The trials showcased the missile’s sophisticated features, particularly its “Man-in-Loop” capability, which allows for in-flight retargeting.

Missile Specifications and Features

The NASM-SR missile employs an indigenous Imaging Infra-Red (IIR) seeker for terminal guidance.
This ensures high precision during target engagement.
The missile’s advanced features include a high-bandwidth two-way datalink system.
This system transmits real-time images back to the pilot, enabling mid-flight target selection.

Launch and Target Engagement

The missile was launched from an Indian Naval Seaking helicopter. During the trials, it first locked onto a large target within a designated search area. In the terminal phase, the pilot retargeted it to a smaller concealed target. This demonstrated the missile’s ability to accurately hit targets while in sea-skimming mode at maximum range.

Guidance and Navigation Systems

The missile incorporates a Fiber Optic Gyroscope-based Inertial Navigation System (INS) and a Radio Altimeter for mid-course guidance. It also features an integrated avionics module and electro-mechanical actuators for control. The missile is powered by a solid propulsion system, which includes an in-line ejectable booster and a long-burn sustainer.

Development and Production

The NASM-SR is developed by various DRDO laboratories, including the Research Centre Imarat and the Defence Research and Development Laboratory. Production involves collaboration with micro, medium, and small enterprises (MSMEs) and startups. This partnership marks India’s commitment to indigenous defence production and technological advancement.

Significance of the Trials

Defence Minister Rajnath Singh praised the successful trials, denoting the unique “Man-in-Loop” feature. This capability enhances operational effectiveness by allowing real-time adjustments during a mission. The trials not only prove the missile’s technical proficiency but also boost India’s maritime defence strategy.

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