The Air Force informed us that, on page A37 of the service’s Fiscal 2016 Budget Overview document, the correct number of A-10s in the Active Duty force in Fiscal 2015 is 143 (not 54 as listed). Also, on that same page, the correct number of A-10s in the Air National Guard’s inventory in Fiscal 2015 is 85 (not 64).
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.