UGM-96 Trident I

The UGM-96 Trident I, or Trident C4, was an American submarine-launched ballistic missile, 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 It was retired in 2005,[2] having been replaced by the Trident II. In 1980, the Royal Navy requested Trident I missiles under the Polaris Sales Agreement. In 1982, this was changed to Trident IIs. It was the first Trident missile to enter service.

UGM-96 Trident I (C4)
The first launch of a Trident I with a drag-reducing aerospike, from Cape Canaveral, on 18 January 1977
Place of originUnited States
Service history
Used byUnited States Navy
Production history
ManufacturerLockheed Missiles Division
Mass73,066 pounds (33,142 kg)
Length33 feet (10.2 m)
Diameter71 inches (1.8 m)
Warheadthermonuclear weapon multiple independently targetable reentry vehicles (MIRV). Eight W76 (100 kt) warheads (Mark 4).

EngineSolid-fuel rocket
4,600 miles (7,400 km)
Astro-inertial guidance
AccuracyCEP: 229-500 m[1]
Ballistic Missile Submarine

The Trident I is a three-stage, solid-fuelled missile.

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.

See also


  1. Matthew G. McKinzie; Thomas B. Cochran; Robert S. Norris; William M. Arkin. THE U.S. NUCLEAR WAR PLAN: A TIME FOR CHANGE (PDF) (Report). Natural Resources Defense Council. p. 19.CS1 maint: uses authors parameter (link)
  2. Popejoy, Mary (November 5, 2005). "USS Alabama Offloads Last of C4 Trident Missiles". US Navy. Retrieved May 16, 2012.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.