Re:U.S. Navy drafting new guidelines for reporting UFOs
by ridgewell on Thursday April 25, 2019 @11:24PM
(#19754593)
A balloon at 50,000 feet rapidly descending doesn't fit the bill at all?
Re:U.S. Navy drafting new guidelines for reporting UFOs
by inamberclad on Monday April 29, 2019 @12:46AM
(#19775909)
Not if it descends faster than 9.81 m/s^2 (or slower, since a deflated balloon will create a lot of drag), neglecting a violent downdraft on what looks like a pretty normal day.
Not sure what balloon exceeds the speed of a jet aircraft in the same body of air.