Kalvari-Class Submarine INS Vagir

In news:

The fifth submarine of Project 75, INS Vagir, Indian Navy’s Kalvari class commenced her sea trials on 01 Feb 22.

Key takeaways

Indian Naval Ship (INS) Vagir is the fifth among the six Kalvari-class submarines.
The other vessels in the class are INS Kalvari, INS Khanderi, INS Karanj, INS Vela and INS Vagsheer.

Technical details

The design of Kalvari class of submarines is based on Scorpene class of submarines which have Diesel Electric transmission systems.
These are primarily attack submarines or ‘hunter-killer’ type which means they are designed to target and sink adversary naval vessels.
It can reach the highest speeds of 11 knots when surfaced and 20 knots when submerged.
These submarines have the Air Independent Propulsion (AIP) which enables non-nuclear submarines to operate for a long time without access to surface oxygen.

Do you know?

Like Kalvari (which means Tiger Shark), Vagir has been named after a Sand Fish, a predatory marine species.
Khanderi has been named after an Island Fort built by Chhatrapati Shivaji.
Karanj has also been named after an Island located South of Mumbai.