[Wonder Warthog]

"Tethered by a cable it becomes a WW2 barrage balloon with the cable cutting the wings off wayward civilian flights, something the Federal Aviation Administration night look down on."

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

[Fitzy_888]

Really....a 250 foot tower, nowhere near any airport requires lighting blinking for aviation lighting.

Welcome the absurd brigade!

[Fitzy_888]

Weather, winds, misdirerect, pilot error, air controller error, aircraft malfunction, etc.

What planet are you on?

[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