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The UGM-133A Trident II, or Trident D5 is a submarine-launched ballistic missile (SLBM), built by Lockheed Martin Space in Sunnyvale, California, and deployed with the United States and Royal Navy. It was first deployed in March 1990, [ 6 ] and remains in service.
All three stages of the Trident II are made of graphite epoxy, making the missile much lighter. The Trident II was the original missile on the British Vanguard-class and American Ohio-class SSBNs from Tennessee on. The D5 missile is currently carried by fourteen Ohio-class and four Vanguard-class SSBNs.
Trident is an operational system of four Vanguard-class submarines armed with Trident II D-5 ballistic missiles, able to deliver thermonuclear warheads from multiple independently targetable re-entry vehicles (MIRVs). It is operated by the Royal Navy and based at Clyde Naval Base on the west coast of Scotland. At least one submarine is always ...
Lockheed Martin (LMT) clinches a $10.9-million contract to support the fiscal 2023 Trident II (D5) missile production schedule.
Missile launch tubes that are the same size as those of the Ohio class, with a diameter of 87 inches (2,200 mm) and a height sufficient to accommodate a D-5 Trident II missile. Beam at least as great as the 42-foot (13 m) beam of the Ohio-class submarines; 16 missile launch tubes instead of 24 missile launch tubes on Ohio-class submarines.
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The American large SSBN was the Ohio class, also called the "Trident submarine", with the largest SSBN armament ever of 24 missiles, initially Trident I but built with much larger tubes for the Trident II (D-5) missile, which entered service in 1990. [26] [27] The entire class was converted to use Trident II by the early 2000s. Trident II ...
The Ohio class was designed in the 1970s to carry the concurrently designed Trident submarine-launched ballistic missile. The first eight Ohio-class submarines were armed at first with 24 Trident I C4 SLBMs. [6] Beginning with the ninth Trident submarine, Tennessee, the remaining boats were equipped with the larger, three-stage Trident II D5 ...