The lead ship in this new class will not be purchased until 2019.

而这个新级别的主舰将在2019年之后才购买。

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It will be the lead ship of a new class of aircraft carriers, the first designed by the U.S. Navy since the Nimitz-class design in the 1960s.

它将是新一代航空母舰的主导舰船，自从1960年代的尼米兹设计以来第一次由美国海军设计。

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S. government and to the nation.It will be the lead ship of a new class of aircraft carriers, the first designed by the U.S.Navy since the Nimitz-class design in the 1960s.

它将是新一代航空母舰的主导舰船，自从1960年代的尼米兹设计以来第一次由美国海军设计。

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The Navy has put together a tightly-wound schedule for developing that successor that requires design work to commence in the fiscal year beginning this October, with a seven-year construction phase for the lead ship starting in 2019.

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The year the oldest Ohio-class ballistic-missile sub completes its final nuclear patrol is now expected to be 2027, which sounds a long way off until you realize it takes nearly two decades to design, develop, build and test the lead ship in a successor class.

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The journey was further delayed for four hours when the towline from the lead tugboat to the ship snapped, and another tug pushing the ship broke a bit.

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