| Is Missile: | yes |
| UGM-96 Trident I (C4) | |
| Origin: | United States |
| Type: | SLBM |
| Used By: | United States Navy |
| Manufacturer: | Lockheed Missiles Division |
| Service: | 1979 to 2005 |
| Engine: | Solid-fuel rocket |
| Weight: | 33142kg (73,066lb) |
| Length: | 10.2m (33.5feet) |
| Diameter: | 1.8m (05.9feet) |
| Vehicle Range: | 7400km (4,600miles) |
| Filling: | Up to eight W76 warheads in Mark 4 RBs with a yield of each. |
| Guidance: | Astro-inertial guidance |
| Accuracy: | CEP 229-500 m[1] |
| Launch Platform: | 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 It was retired in 2005, having been replaced by the Trident II.[2]
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 s were armed with Trident I missiles. Twelve - and s 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.