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A comment on Drones that can haul a 20-pound load for 500 miles and land on a moving target. Parent comment

Re:Drones that can haul a 20-pound load for 500 miles and la... by simonh on Sunday May 27, 2018 @11:08AM (#17167139)
So now we have hundreds of monitors checking wobbly camera images all the time trying to spot tiny drones in all weather and all times of day. How often do balloons need refilling? Aren’t balloons highly visible and extremely vulnerable? Has anything like this ever even been tried in practice?
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Re:Drones that can haul a 20-pound load for 500 miles and la... by timmaah on Sunday May 27, 2018 @11:28AM (#17167243)
Been tried and working for decades.

https://en.wikipedia.org/wiki/Tethered_Aerostat_Radar_System

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Re:Drones that can haul a 20-pound load for 500 miles and la... by simonh on Tuesday May 29, 2018 @11:10AM (#17179831)
That's a high altitude aircraft defence system. We're discussing low altitude terrain level drones the size of a shoebox operating up to maybe 100m altitude, just enough to pop up over the wall. Air defence radar like that is going to be completely useless for this.
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