RPK-2 Vyuga

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RPK-2 Vyuga (NATO reporting name: SS-N-15 'Starfish')
Mission profile
Type	Anti-submarine/ship missile
Place of origin	Soviet Union
Service history
In service	1969–current
Used by	Russia
Production history
Designed	1960s
Specifications
Warhead	≥5 kt thermonuclear warhead or a Type 40 torpedo
Warhead weight	2445 kg
Propellant	solid fuel rocket
Operational range	35–45 km (22–28 mi)
Maximum speed	Mach 0.9
Guidance system	Inertial guidance
Launch platform	Akula, Oscar, Typhoon, Alfa, Delta, Kilo, Borei

The RPK-2 Vyuga (Russian: РПК-2 Вьюга, blizzard; NATO reporting name: SS-N-15 Starfish), also designated as 81R, is a Soviet submarine-launched, nuclear-armed anti-submarine missile system, launched exclusively through 533-millimetre (21.0 in) torpedo tubes. The system was designed in Sverdlovsk, Russian SFSR in the 1960s.

Analogous to the SUBROC missile previously used by the US Navy, it is designed to be fired from a 533 mm torpedo tube. It is boosted by a choice of mechanisms depending on model before clearing the water, firing a solid fuel rocket and delivering its payload up to 45 kilometres (28 mi) away. The payload ranges from a simple depth charge to a 200 kt nuclear depth bomb.