A blimp, for a drone ?
 

Found this interesting ..
"Giant Spy Blimp Battle Could Decide Surveillance’s Future"

"Surveillance drones like the Predator and the Reaper are starting to lose just a bit of their sheen in military circles, even though their number of “orbits,” or combat air patrols, has more than quadrupled in the last five years. Giant spy blimps are the new hotness."

http://www.wired.com/dangerroom/2011...-blimp-battle/

Aerostats have been used successfully for decades and there are some very promising high altitude long endurance balloon platforms under development.

It is definitely an area I wish we were investing more money into. :yep: