INS Arihant (S-73); INS Arighat (Aridhaman) (S-74); Unnamed Vessel #3 (); Unnamed Vessel #4 ()
Traveling under the surface to search, track, and / or engage or reconnoiter areas.
Active patroling of vital waterways and maritime areas; can also serve as local deterrence against airborne and seaborne threats.
Serving in support (either firepower or material) of the main surface fleet in Blue Water environments.
1 x Pressurized water nuclear reactor developing 111,000 horsepower to 1 x Shaft astern.
1 knot = 1.15 mph; 1 nm = 1.15 mile; 1 nm = 1.85 km
24 x K15 OR 8 x K-4 ballistic missiles.
6 x 21" (533mm) torpedo tubes.