Nag missile | anti-tank | fire-and-forget | Indian Defence Force | Missile

 

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The Nag missile , also called "Prospina" for the land-attack version, is an Indian third-generation, all-weather, fire-and-forget, lock-on after launch, anti-tank guided missile (ATGM) with an operational range of 500 m to 20 km. It has a single-shot hit probability of 90% and a ten-year, maintenance-free shelf life. The Nag has five variants under development, a land version, for a mast-mounted system the helicopter-launched Nag (HELINA), a "man-portable" version (MPATGM), an air-launched version (which will replace the current imaging infra-red (IIR) to millimetric-wave (mmW) active radar homing seeker; and the Nag Missile Carrier (NAMICA) "tank buster", which is a modified BMP-2 Infantry Fighting Vehicle (IFV) produced under license in India by Ordnance Factory Medak (OFMK).

Development of the Nag is part of the Integrated Guided Missile Development Program (IGMDP), run by Defence Research and Development Organisation (DRDO). It is manufactured by Bharat Dynamics Limited (BDL). India's Ministry of Defence (MoD) announced on 19 July 2019 that the missile was ready for production.

The Nag missile's exterior is made of fibreglass.

It is developed for engaging heavily armored tanks in all-weather conditions during day and night with a minimum range of 500 m and a maximum range of 4 km for the land variant. The third-generation fire-and-forget-class ATGM uses an imaging infrared (IIR) seeker that locks on to the target before launch. The airframe is made up of composite materials with high resistance to enemy countermeasures. The forward dome houses the guidance system. The middle portion of the body accommodates sensor packages and the warhead. A booster rocket is located towards the rear end. The Nag consists of four foldable wings and four tail fins that stabilize it during flight. A real-time image processor located next to the guidance package helps enable automatic target detection and tracking capability. The digital autopilot helps in the guidance, stability, and control after launch.

An electric actuation system also helps in flight control. The guidance system is based on an imaging infrared (IIR) seeker that ensures a high target accuracy in both top and front attack modes. A CCD camera integrated into the guidance system is useful as it is hard to jam. The initial guidance is provided by area correlation around the target, to which is added a centroid tracking mechanism. Homing in the terminal phase is done by area correlation around the centroid.

The Nag rises upwards suddenly and then bends at a steep angle to aim for the target.



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