India’s first indigenous composites sonar dome, a ship’s underwater eyes and ears, was flagged off by Defence Minister Manohar Parrikar. The sonar dome was dedicated to the nation dedicated to the nation and will be delivered to Mazgaon Docks, Mumbai for use in the warships of Indian Navy. Key facts The sonar dome is dsigned and produced by a Defence and Research Development Organisation’s (DRDO’s) Research and Development Establishment (Engineers) lab based in Pune. It is a first of its kind in the country to be manufactured by the Goa-based composites manufacturing company Kineco. The sonar dome functions as the ship’s underwater eyes and ears and mostly all anti-submarine warfare (ASW) ships have a sonar array fitted to the ship structure below the waterline. The sonar dome is a structure is fitted over the sonar array to make it acoustically transparent in order to avoid exposure of its electronics and sensors to surrounding hostile environment. With successfully building indigenous sonar dome, India joins a select group of nations which have the capability of realising large composites structure with complex geometry, high structural rigidity and multi-functional requirements with acoustic transparency. Sonar: It is an acronym for SOund Navigation And Ranging. It is a technique that uses sound propagation (usually underwater) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels.
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