Navy reveals six-year, $700M plan to design second Trident SLBM life extension

摘要

The Navy is proposing a $700 million, six-year project to define a second life extension of the Trident Ⅱ D5 submarine-launched ballistic missile to keep the 27-year old strategic weapon system in service for the life of the new Columbia-class submarine fleet through 2083, potentially stretching the life of the Trident across a century.