Trident II

Trident II  

‚ÄčNorthrop Grumman manufactures solid-propulsion boost motor systems for all three stages of the Trident II missile, also known as the Trident D5, under a contract from prime contractor Lockheed Martin Space Systems Co. Northrop Grumman has a long history of producing solid-propulsion systems for submarine-launched missiles, beginning with the Polaris missile in the 1950s.

The Trident II is a three-stage, solid-propellant, inertial-guided missile system that is the primary strategic weapons program in the U.S. Navy's Fleet Ballistic Missile system.

With a nominal range of 4,000 nautical miles, the D5 missile is launched under water from the Ohio class of nuclear-powered Trident submarines, each of which has 24 launch tubes. The Trident II was deployed in 1990 and is designed to be the primary U.S. strategic deterrent well into the 21st century.

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