RTW Solar Impulse 2
On Monday, March 16, 2015 at 1:29:20 AM UTC-7, Kilo-Bravo wrote:
Surely the most remarkable adventure in this century is the RTW-Flight of swiss made Solar Impulse 2, operating without a single drop of Kerosine or Gas.
Well, there are still 85 years to go in this century to beat it...
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