Abhay Kumar Singh replies: A nuclear submarine is a submarine powered by a nuclear reactor. Since nuclear propulsion does not require atmospheric oxygen, it frees the submarine from the need to surface frequently, as is necessary for conventional submarines. Due to the long interval between refuelling of the reactor, the sortie duration of nuclear submarine remains limited by food embarked and crew fatigue. Simply put, a nuclear submarine has a nearly limitless range and superior manoeuvrability.
Military Logistics Agreements: Wind in the Sails for Indian Navy
Availability of logistics support facilities with partner countries will further enhance the ability of the Indian Navy to maintain appropriate ‘presence’ for extended periods in the wider Indo-Pacific.