Couple comments.
Would appear to have the capacity to haul a LOT of fuel, so why is range limited to 3000 miles?
For military applications, it looks an awful lot to me like a very large, very slow target.
I would expect the biggest difficulty to be taking off or landing in windy conditions, especially gusting winds.
Don’t most radars need a hard surface to ping off of? That thing would be like trying to get a weapons lock on a cloud.
exactly what I thought as well. nice concept but impactical in real life.