INS Sindhukesari

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About INS Sindhukesari :

It is a 3,000-tonne Kilo-class diesel-electric submarine.
It was designed as part of Project 877 and built under a contract between Rosvooruzhenie, Russia, and the Ministry of Defence (India).
Features:
It has a displacement of 3,000 tons.
It has a maximum diving depth of 300 meters, a speed of up to 18 knots, and can operate solo for 45 days with a crew of 53.

What are Kilo-class submarines?

The Kilo Class is the NATO designation for a naval diesel-electric submarine made in Russia.
The original version of the vessels were designated Project 877 Paltus (Halibut) in Russia.
They are mainly intended for anti-shipping and anti-submarine operations in relatively shallow waters.
The first Kilo Class submarine entered service in the Soviet Navy in 1980, and the vessel continues to be in service in the Russian Navy.
These submarines are 70-74 meters long. It can travel at a maximum speed of 10-12 knots when surfaced and 17-25 knots when underwater.
These vessels can carry up to eight surface-to-air missiles and 18 torpedoes or 14 underwater mines.

Q1) What is a diesel-electric submarine?

As their name suggests, Diesel-Electric submarines run on diesel and electricity. They have a large network of batteries which are charged by the diesel generator. These submarines have to come up to the surface in order to charge their batteries .

Source: Indian submarine INS Sindhukesari docks in Indonesia amid South China sea tensions