US Navy testing electromagnetic catapult on aircraft carrier

The US Navy is now testing a replacement system called the Electromagnetic Aircraft Launch System (EMALS) aboard the new USS Gerald R. Ford. It works by using an electric current to generate magnetic fields that propel a carriage down the track built into the runway, launching planes much more smoothly and efficiently than the old steam catapults with improved reliability. A steam catapult takes up a great deal of space and weigh in excess of 1,300 pounds. These systems take a long time to recharge after each launch, and the launch itself is rather abrupt. There's no smooth acceleration with a steam piston, resulting in increase wear on the body of the aircraft. Steam catapults also use more power than the EMALS system.
"Fire" heats water makes stream that turns a turbine to make electric power.
Replace word "fire" with: Coal, Oil, Gas, Nuclear, Solar Furnace, Geo-Thermal, so 19th century!
So superheated stream driving the plunger is less efferent the electric-o-magnetic.
One conversion of energy, vs two? No loss there!