According to information published by Broadsword on March 10, 2021, the Defence Research and Development Organisation (DRDO) crossed an important milestone on Monday, when it demonstrated an Air Independent Propulsion (AIP) system that will allow Indian Navy submarines to operate for up to two weeks without having to surface to recharge batteries.
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| INS Karanj (2018) is the third submarine of the first batch of six Kalvari-class submarines for the Indian Navy. It is a diesel-electric attack submarine based on the Scorpene class. (Picture source: NMTV) |
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