[az_gila]

Shouldn't be a problem, as airspace routes are already known, and the location of the tethered units will be known and not changing.

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Several tethered balloons are already in use near the Southern border, and can reach to 15,000 ft.

One near Deming, NM is shown here -

https://skyvector.com/?ll=32.037028964327384,-107.87979125531093&chart=301&zoom=2&fpl=undefined

[Wonder Warthog]

Good information.....thanks!