Re: Historical data
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Luis Eduardo Pacheco
The balloons I refer to were never flying so low (2.900 feet) Don't know if it was a typo or not in your message but they moved between 60.000 and 70.000 ft well above air traffic. The wind can be tricky. You can have no wind on the surface and 5.000 feet above a 80 mph wind. Or even wind moving in opposite directions according to the altitude. These balloons as occur with the Project Loon balloons can be steered in some way by choosing the altitude. They can hover over an area of interest. That makes sense as the balloons launched from Cumberland in June 2019 were part of a DARPA surveillance program. Cheers 
Luis E.Pacheco
/ Editor
StratoCat - History and present of the use of stratospheric balloons in the fields of science, military and aerospace
El vie, 12 feb 2021 a las 14:30, Margie Kay (<momufonasd@...>) escribió:
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