Explained: Why are Air Independent Propulsion submarines significant for India


The DRDO on Wednesday tested a land-based prototype of an Air Independent Propulsion (AIP) submarine. The prototype operation at the Naval Materials Research Laboratory in Ambernath, Maharashtra, is considered to give a boost to the DRDO’s plan to build AIP systems for Indian naval submarines. The land-based prototype was engineered to the form-and-fit of a submarine.

What is the Air Independent Propulsion (AIP) technology used in submarines?
Submarines are essentially of two types: conventional and nuclear. Conventional submarines use a diesel-electric engine, and must surface daily for oxygen for fuel combustion. If fitted with an Air Independent Propulsion (AIP) system, the sub needs to take in oxygen only once a week. Read More

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