Electromagnetic Aircraft Launch System (EMALS) on the USS Gerald R. Ford (CVN 78). EMALS is designed to replace the steam catapult systems currently used on the Nimitz-class aircraft carriers.
https://www.youtube.com/watch?v=jJNcCermTDw
More:
https://www.airspacemag.com/military...474260/?page=1
Previously:
https://www.homemadetools.net/forum/...295#post116282
https://www.homemadetools.net/forum/...2528#post76528