Eye on China, India’s plan for 6 nuclear-powered attack submarines back on track

On March 8, the Defence Research Development Organization (DRDO) successfully carried out the final test of the land based prototype of the Air Independent Propulsion (AIP) system in Mumbai. The AIP system, retrofitted by expanding the hull area, ensures that diesel attack submarines can remain under surface for a longer period and become more silent than a nuclear-powered submarine.

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