The TRIDENT system was established to develop and deploy an improved missil-carrying nuclear submarine with a new long-range missile, to offset increasing strides in Soviet naval anti-submarine warfare capability. The TRIDENT strategic weapons system consists of the TRIDENT missile and its shipboard launcher and fire control, navigation, and missile instrumentation test and readiness subsystems. The TRIDENT (C-4) missile is a three stage, solid propellant stellar inertial guided, submarine-launched, fleet ballistic missile. It has a range greater than the POSEIDON missile, thus providing a several-fold increase in the operational area of the United States submarine fleet. The TRIDENT is now deployed in the OHIO class TRIDENT submarines, as well as in 12 POSEIDON submarines which have been back-fitted with the missile.
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