Gallery: Solar Impulse Launches Solar-Powered Flight from San Francisco...

 
The solar-powered plane only travels at an average speed of about 40 mph, and the trip across the US will be broken into five flights that are each about 20 hours in duration.

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2 Comments

  1. daschio October 30, 2013 at 11:33 am

    great! go on!

  2. SkipFranks May 6, 2013 at 3:19 pm

    Awesome, keep us posted!!!

    Best regards,
    Skip

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