Photo: Qinetiq Breaking All Kinds of Records A couple weeks ago we wrote about the Solar Impulse , a solar airplane that flew for over 24 hours straight. That was very impressive for an aircraft with someone on board, but compared to the solar-powered Zephyr unmanned aircraft, that’s child’s play. The Zephyr has broken all kinds of records last week by staying in the air for 7 days, and right now it is still flying, trying to get to 14 days of continuous flight without any kind of in-flight ref… Read the full story on TreeHugger
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The ‘Eternal Aircraft’ Zephyr Solar Plane Aims for 14 Days in the Air
