P-70 Ametist

P-70 Ametist
(NATO reporting name: SS-N-7 'Starbright')
TypeAnti-ship missile
Place of originSoviet Union
Service history
In service1967-1992
Used bySoviet Union, Russia, India, North Korea (unconfirmed)
Production history
DesignerVladimir Chelomey
Designed1958 - 1968
ManufacturerNPO Mashinostroyeniye
Produced1966 - 1987
No. built631
Specifications
Mass3,500 kg (7,700 lb)
Length7 m (23 ft)
Warhead4G66 HEAT Warhead or 200 kt nuclear
Warhead weight1,000 kg (2,200 lb)

PropellantSolid fuel
Operational
range
65 km (35 nmi)
Boost time7 seconds (tube exit to main stage)
Maximum depth30 m (98 ft)
Maximum speed Mach 1.0
Guidance
system
Inertial guidance, terminal active radar homing
Launch
platform
Charlie-I & Papa class SSGNs

The P-70 Ametist (NATO reporting name: SS-N-7 Starbright, GRAU designation 4K66; Russian: П-70 «Аметист» 'Amethyst') was an anti-ship missile carried by Soviet and Indian Project 670 submarines, as well as the Soviet Project 661 Anchar. It was soon succeeded by the P-120 Malakhit (SS-N-9 'Siren').

Fielded on June 3 1968, it was the first missile system in the world to be launched from a submerged submarine. From 1968 to 1987, a total of 631 missiles were built.