Solar-powered Zephyr smashes record for the longest unmanned flight

September 11, 2007 Using new solar array technology and a tailor-built autopilot system, QinetiQ’s Zephyr High Altitude Long Endurance Unmanned Aerial Vehicle has nearly doubled the official world record time for the longest duration unmanned flight with a 54 hour flight achieved during trials at the US Military's White Sands Missile Range in New Mexico.

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