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CleanTechnica
Nov 20, 2014, 3:55 pm26 ptsOriginally published on 1Sun4All. The pilots of Solar Impulse 2 (Si2) have been diligently testing the solar-powered aircraft for the 2015 round-the-world flight. This first in aviation history will take the pilots, the crew and the entire Si2 team around the world: crossing oceans and continents. Si2…
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