Tethered Blimps Could Be Legal Alternative to Drones - LiveScience.com [feedly]

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Tethered Blimps Could Be Legal Alternative to Drones - LiveScience.com
// unmanned air system: Google Noticias

Tethered Blimps Could Be Legal Alternative to Drones
LiveScience.com
A company that makes tethered blimps for the military is now developing them for commercial uses, from surveillance of bridges and roadways to assistance after natural disasters. Free-flying drones, or unmanned aircraft systems, have also been proposed ...

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