if it is, then what have I been hearing at Ft. Carson all week?
Seems like every afternoon, a nice, loud BrrRRRRUUUUUUP
I keep trying to get a recording, but there's no warning, and there's usually pretty long time between runs (sounds like the A-10, doesn't it?)
plus, I've seen aircraft that look remarkably like the A-10 flying through the sky- straight wings, big fat back end...