Wpisy oznaczone tagiem "Unmanned" (2)  

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The Northrop Grumman RQ-4 Global Hawk unmanned aerial vehicle (UAV) is quite an impressive piece of hardware. It can stay in the air for more than a day, has a range of 3,400 miles, and at very high altitude (its record is 19,928 meters (65,380.6 ft)). Usually it's the military that would have control over these UAVs, but two Global Hawks have...

Link: www.treehugger.com/(…)nasa-global-hawk-uavs-climate…

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