By A Mystery Man Writer
Airbus Zephyr solar-powered drone completes 40 days of non-stop flying
Zephyr, UAS, Military Aircraft
U.S. Military Tests Record-Setting Ultra-Endurance Stratospheric Drone - The Debrief
Airbus Zephyr crashes short of endurance record - AOPA
Zephyr S set to break aircraft world endurance record – sUAS News – The Business of Drones
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Airbus Zephyr crashes short of endurance record - AOPA
The world's longest flight spent more than two months in the air
Airbus' Zephyr drone misses world record flight by hours – The World of Aviation
The world's longest flight spent more than two months in the air