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This week Navy officials said they are trying to extend the lives of Ohio-class ballistic missile submarines (SSBNs) beyond the current 42-year service life to provide more schedule margin for the Columbia-class successor vessels. “We have programs in place to extend the lives of submarines as much as we technically can. We’re already extending the life of the [Ohio] class to over 40 years of service. This is a testament to the way we designed the ship, the toughness that…
