Tag Archives | RQ-4 Global Hawk

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Photo oddity: Global Hawks go biplane

Our colleague Zach Rosenberg filed on the US Defense Advanced Research Projects Agency’s completion of a flight test programme intended to prove the viability of autonomous high-altitude refuelling involving unmanned air vehicles. Performed using a pair of NASA-owned Northrop Grumman RQ-4 Global Hawks, the activity showed that refuelling could have been successfully conducted during 60% […]

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