There are nineteen B-2 Spirits in the world and roughly ten to twelve of them are fully mission capable on any given day. In April 2024 the Air Force put twelve of them on the runway at Whiteman Air Force Base and launched them in sequence. The Air Force was making a point. It was a minimum interval takeoff, the capstone of the Spirit Vigilance readiness exercise, and it came a year after a grounding and a run of maintenance problems had raised …