Have you looked up FAA regulations? https://www.faa.gov/air_traffic/publications/atpubs/atc_html/chap9_section_6.html https://www.faa.gov/air_traffic/publicati

Have you looked up FAA regulations? https://www.faa.gov/air_traffic/publications/atpubs/atc_html/chap9_section_6.html https://www.faa.gov/air_traffic/publications/atpubs/atc_html... Also, might be good to look into putting a device that will broadcast its location via radio or radar. I believe that above 60k feet airspace is unrestricted, but up till there it might be a good idea Plus a broadcast signal might scream "This isn't a spy balloon" to USAF lol