Message posted by GoSlash27 (Member since 06/01/2018) on April 16, 2021 at 14:38:48 PST:
Whatever it is, it doesn't appear to be supersonic. I have no idea what it actually is. Nothing in the video supports the claim in the title.
In Reply to: SR 72 video posted by Lunartuna on April 15, 2021 at 20:03:46 PST: