Atma Nirbhar Defence: DRDO develops AIP submarines

India is only country to develop this technology after US, France, China, UK and Russia

Defence Research and Development Organization (DRDO) has successfully conducted the final development test of Air Independent Propulsion (AIP) in Mumbai which is a major step towards Atma Nirbhar defence. It will make Indian submarines more lethal and allows a submarine to be submerged for longer periods under water. The AIP-equipped submarine also maintains a lethal silence. The new technology can also take advantage of internal refraction in equatorial waters due to differences in temperatures on the surface and within the ocean.


India is only country to develop this technology after US, France, China, UK and Russia, making it crucial on defence and technology advancement of India. AIP technology is based on a Phosphoric Acid Fuel Cell and India’s two Kalvari class submarines INS Vagir and INS Varghese will be powered by it. Indian Navy can now also proceed with retrofitting all its Kalvari class non-nuclear attacks submarines with AIP during their next upgrade scheduled for 2023.


DRDO takes its official twitter handle to post about this achievement “DRDO achieved an important milestone in the development of AIP System by proving the land based prototype on 8 March 2021. The plant was operated in endurance mode and max power mode as per user requirements. AIP system is being developed by NMRL DRDO with the hashtag Atma Nirbhar Bharat.


Defence Minister Rajnath Singh has congratulated DRDO, Indian Navy and the Industry for this significant achievement.

India Scanner News Network

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