President Donald Trump’s decision to replace modern electromagnetic launch systems with steam catapults on a future aircraft carrier has turned a technical design choice into a test of presidential judgment.

Trump has directed the Pentagon to develop a plan within 60 days to remove the electromagnetic aircraft launch system and advanced weapons elevators from the USS Doris Miller, a Ford-class carrier already facing delays. His rationale is familiar: steam systems, he argues, are simpler, cheaper and easier to repair. The conservative framing presents the move as a straightforward return to a proven, older technology rather than a retreat from innovation — “return to an older system of launching jets off aircraft carriers.”¹

But the liberal account emphasizes the timing and cost of the order. The carrier’s design and construction are already substantially advanced, and General Atomics, which builds the electromagnetic system, says nearly half of its work is complete. The company warned that changing course now would create “significant cost, schedule, and integration risks.”² Navy and industry leaders have reportedly resisted the proposal because replacing a system embedded in the ship’s architecture would require an expensive redesign.

Trump’s argument rests largely on repeated personal anecdotes, including one in which a sailor supposedly told him steam could be fixed with “a hammer and a blowtorch,” while electric systems required specialists. That confidence contrasts sharply with Senator Mark Kelly, a former astronaut and test pilot with a master’s degree in aeronautical engineering, who said he would not advise the Navy on engineering its ships — and accused Trump of being better suited to “ballrooms, bankruptcy, and bullshit.”²

Both perspectives agree that catapult reliability matters. They diverge over what matters more: Trump’s preference for mechanical simplicity or the cost, schedule and technical consequences of imposing it on a carrier designed around newer technology.