The RPK-2 uses a 82R
torpedo or 90R nuclear depth charge in the 533 mm version, and a 83R torpedo carrying or 86R nuclear depth charge in 650 mm version. Both submarine- and surface-launched versions exist. The surface-launched versions are used by the , , and classes. The submarine-launched versions are used by the , , , , , and classes. However, the munition package used in either is identical and hence the ship-launched version is launched into the water and submerges before firing its engines.The
Charlie class submarines was also outfitted with the Starfish missile, with 5 being fired from
INS Chakra during her service with the
Indian Navy. ==Operators==