Indian Navy is all set to receive a boost through Air Independent Power (AIP) for its submarines. This system is bound to be installed by Defence Research & Development Organisation (DRDO) aboard all Kalvari Class submarines. India's neighbours, Pakistan & China already possess this technology.
The AIP technology allows a non-nuclear submarine to stay underwater for extended period of times which in turn makes them harder to detect and allows patrolling in high risk areas. This locally designed system is expected to increase the endurance of submarines under water by two weeks.
This system burns ethanol with stored oxygen to produce steam, which turns a turbine just like a nuclear plant.
Pakistan is also buying eight Type 093B submarines from China that will come with another type of AIP called a stirling generator, which uses a closed cycle diesel engine. The Stirling generator is famous because of its use by Swedish as well as Japanese Navy.
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