President Trump has ordered the US Navy to draw up plans to replace electromagnetic aircraft catapults and weapons elevators with old-fashioned steam and hydraulic systems. America’s commander-in-chief issued a presidential memorandum directing the secretary of defense, in consultation with the secretary of the Navy, to come up with a plan to replace the Electromagnetic Aircraft Launch System (EMALS) on the future USS Doris Miller (CVN-81) with the older steam-powered system. The same note