UGM-96 Trident I
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. The Trident was intended to have longer range than the Poseidon, allowing the fleet to maintain a longer distance from the target, enhancing survivability.
Also recorded as Trident C4 · Trident I
UGM-96 Trident I
US Navy · Public domain
- Name
- UGM-96 Trident I (C4)
- Field
- Trident.
- Region
- United States.
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Documentary summary
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. The Trident was intended to have longer range than the Poseidon, allowing the fleet to maintain a longer distance from the target, enhancing survivability.
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In this article
Overview
Overview
It was retired in 2005, having been replaced by the Trident II. The missile was a three-stage, solid-fueled system, capable of carrying up to eight W76 warheads in the Mark 4 RB. Twelve - and s were retrofitted with Trident I missiles, which replaced older Poseidon missiles. The first eight s were armed with Trident I missiles. The Ohio-class submarines were designed for the Trident II missiles, but used Trident I missiles until the Trident II missiles became available. 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.
Key facts
Key facts
• Is Missile — yes • Name — 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 — 33850 kg • Length — 10.39 m • Diameter — 1.88 m • Vehicle Range — 7400 km • Filling — Up to eight W76 warheads in Mark 4 RBs with a yield of 100 ktTNT each. • Guidance — Astro-inertial guidance • Accuracy — CEP: 229-500 m • Launch Platform — Ballistic Missile Submarine
Primary material
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authority record
- Wikidata, structured authority record Q2044751: UGM-96 Trident I
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reference work
- “UGM-96 Trident I”, English Wikipedia, consulted as further reading
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Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Natural Resources Defense Council. THE U.S. NUCLEAR WAR PLAN: A TIME FOR CHANGE. 19.
- 2.Popejoy, Mary. USS Alabama Offloads Last of C4 Trident Missiles. navy.mil. US Navy. November 5, 2005.
- 3.Lennox, Duncan. Jane's strategic weapons systems. Coulsdon, Surry, Eng. ; Alexandria, VA : Jane's Information Group. 1989. 978-0-7106-0880-2.
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
Elsewhere in Militaria
6,095 published records in this field, each with its sources named.
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- UGM-27 PolarisTerminology
- UGM-73 PoseidonTerminology
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- UgrozaTerminology
- UK vz. 59Terminology
- Ukraine and weapons of mass destructionTerminology
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