Anechoic Coating
Also known as sound-absorbing coating or RAM (radar-absorbent material) coating, is a material that is applied to the surface of submarines to reduce their acoustic signature.
It is designed to absorb or scatter incoming sound waves, thereby reducing the amount of sound that is reflected back and making the submarine less detectable by sonar systems. The anechoic coating is made up of a layer of rubber tiles, which are then covered with a layer of sound-absorbing material.
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