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.

First deployed in 1990, the Trident II D5 missile is currently aboard OHIO-class and British VANGUARD-class submarines and will remain in use until 2042. The U.S. and allies are entering a new era of deterrence—our next great challenge of global importance.

2023年9月29日 · The U.S. Navy's Strategic Systems Programs conducted a scheduled, missile test flight of an unarmed life-extended Trident II (D5LE) missile from USS Louisiana (SSBN-743), an Ohio-class ballistic missile submarine, on the Western Test Range off the coast of San Diego, California, at approximately 2:10 p.m. yesterday.

2019年5月15日 · Life-extended Trident II D5 missiles (D5LE) were introduced to the Fleet in early 2017. These D5LE missiles will serve throughout the remaining service life of the U.S....

2021年9月18日 · The U.S. Navy conducted a scheduled, two-missile test flight of unarmed life-extended Trident II (D5LE) missiles from USS Wyoming (SSBN-742), an Ohio-class ballistic missile submarine, on the Eastern Test Range off the coast of Cape Canaveral, Florida,,

UGM-133A弹道导弹（代号：UGM-133A，名称：Trident Ⅱ，译文：三叉戟Ⅱ型，又称：三叉戟D5），是美国海军第三代 潜地弹道导弹。 UGM-133A弹道导弹是美国海军最重要的海基核威慑力量。 UGM-133A弹道导弹于1983年开始工程研制，1987年1月在陆基平台上进行首次三叉戟Ⅱ导弹飞行试验，1989年进行潜射试验，初始部署于1990年，服役中 [2]。 美国的潜射弹道导弹技术上是十分超前的。 第一代潜射弹道导弹就是全固体的二级北极星弹道导弹，它早在1960年7月20日 …

2021年9月18日 · The U.S. Navy conducted a scheduled, two-missile test flight of unarmed life-extended Trident II (D5LE) missiles from USS Wyoming (SSBN-742), an Ohio-class ballistic missile submarine, on the ...

2021年9月23日 · 未来，美国海军计划将主要把“三叉戟ii d5le”潜射洲际战略弹道导弹，配备在其新一代的“哥伦比亚”级战略导弹核潜艇上，同时，英国海军之后的 ...

2021年9月17日，“示范与整顿行动”（Demonstration and Shakedown Operation）——DASO-31期间，一枚未装备武器的三叉戟II延寿导弹（D5LE）从位于佛罗里达州 卡纳维拉尔角 海岸的俄亥俄级弹道导弹潜艇“ 怀俄明号 ”（SSBN 742）上发射。(U.S. Navy)

TRIDENT II (D5) enhances United States (U.S.) strategic deterrence by providing a survivable sea- based system capable of engaging the full spectrum of potential targets. It enhances the U.S. position in strategic arms negotiation by providing a weapon system with performance and payload flexibility to accommodate various treaty initiatives.