|UGM-96 Trident I (C4)|
|Place of origin||United States|
|Used by||United States Navy|
|Manufacturer||Lockheed Missiles Division|
|Mass||73,066 pounds (33,142 kg)|
|Length||33 feet (10.2 m)|
|Diameter||71 inches (1.8 m)|
|Warhead||Up to eight W76 warheads in Mark 4 RBs with a yield of 100 kilotonnes of TNT (420 TJ) each.|
|4,600 miles (7,400 km)|
|Accuracy||CEP: 229-500 m|
|Ballistic Missile Submarine|
The UGM-96 Trident I, or Trident C4, was an American submarine-launched ballistic missile (SLBM), built by Lockheed Martin Space Systems in Sunnyvale, California. First deployed in 1979, the Trident I replaced the Poseidon missile. It was retired in 2005, having been replaced by the Trident II.
The missile was a three-stage, solid-fuelled system, capable of carrying up to eight W76 warheads in the Mark 4 RB.
The first eight Ohio-class submarines were armed with Trident I missiles. Twelve James Madison- and Benjamin Franklin-class submarines were also retrofitted with Trident I missiles, which replaced older Poseidon missiles.
In 1980, the Royal Navy requested Trident I missiles under the Polaris Sales Agreement. In 1982, the agreement was changed to supply Trident II instead.
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