Definitely a C17, almost certainly NCANG based out of CLT. My office is 4 miles south of the airport and we see them all the time. Pics don’t do any justice to how massive these suckers are, especially when they fly by at about 1500ft at what looks like 45mph
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One if my best friends is on ground crew and works on them and tells me some cool stories about the stuff they do. They were flying something like 50 tons of supplies to Asheville everyday after Helene. Could have doubled that, but AVL didn’t have capability to handle any more than that.