Solar-powered Zephyr UAV Flies Seven Days Non-Stop
The UK-built Zephyr solar-powered plane has smashed the endurance record for an unmanned aerial vehicle (UAV).
The craft took off from the US Army's Yuma Proving Ground in Arizona at 1440 BST (0640 local time) last Friday and is still in the air.
Its non-stop operation, day and night, means it has now gone five times longer than the official mark recognised by the world air sports federation.
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