An Air Combat Command accident investigation board (AIB) has determined that pilot error led to the Nov. 2, 2008, crash of an MQ-1 Predator unmanned aerial vehicle in Afghanistan. According to the AIB, the pilot took an aggressive turn to avoid entering a no-fly zone, causing the UAV to spin out of control and crash. Contributing to the accident were these factors: the UAV had a Hellfire missile on its left wing, causing extra weight on the left; there was a significant crosswind; the autopilot did not limit the turn to 40 degrees of bank; and it is easy to over-control the Predator. (ACC April 2, 2009, release)
The rate of building B-21 bombers would speed up if the fiscal 2026 defense budget passes. But it remains unclear how much capacity would be added, and whether the Air Force would simply build the bombers faster, or buy more.