When unmanned aircraft can refuel one another, their time on a mission will be dramatically extended. The Air Force Research Laboratory is spending $49 million over the next four years to create a system that will allow UAVs to autonomously refuel in the air, as seen in this 2007 RQ-4 Global Hawk test.
From Popular Mechanics:
In its latest plans for the future, the Air Force envisions swapping its pilots for a fleet of versatile—and affordable—unmanned airplanes. A single UAV with interchangeable payloads could replace several legacy airplanes. Here's a look at some possible trades.
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