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A comment on Mysterious High-Altitude Flight Corridor Opened Up Between Area51 and Pacific.

Re:Mysterious High-Altitude Flight Corridor Opened Up Betwee... by remarkEon on Tuesday March 16, 2021 @10:54PM (#26485967)
>The notice outlined a path 20 nautical miles wide and 426 miles long at an altitude between Flight Level 450 and Flight Level 600, or 45,000 to 60,000 feet.

What usually flies between 45 and 60k feet? Anything cool?

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Re:Mysterious High-Altitude Flight Corridor Opened Up Betwee... by pridkett on Wednesday March 17, 2021 @06:58AM (#26489271)
Commercial airliners are usually below this altitude, it’s the upper end from private jets. A G6 has a max altitude of 51,000ft. They routinely cruise around 49,000ft.
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