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U.S. Navy Ballistic Missile Submarines (FBM's, or Boomers), have 2 separate crews that alternate rotation on a 3 month basis. The cycle is 1 month for refit and repair, then 2 months for any sea trials, certifications, tests, etc., then time spent on nuclear deterrent patrol.

Blue and Gold are the designations for each separate crew. It is similar to the Repair and War Patrol submarine crews of WWII, in which the boat's refit and repair following a return from a War Patrol was performed by a totally separate crew while the other was on leave and training. The difference is that each crew does their own work and performs their own patrols.

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15y ago

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