The problem at 60k feet is actually you are above the weather and don't have a t...

mike_d on Feb 5, 2023 | parent | context | favorite | on: U.S. military shoots down suspected Chinese survei...

The problem at 60k feet is actually you are above the weather and don't have a ton of wind to work with. Moving up and down in the minor wind currents is far more efficient energy wise and practically.