Pilot and co-founder of Solar Impulse Piccard and co-pilot Borschberg attend the official unveiling ceremony of the Solar Impulse II aircraft at their base in Payerne
Pilot and co-founder of Solar Impulse Bertrand Piccard (L) and co-pilot Andre Borschberg attend the official unveiling ceremony of the Solar Impulse II aircraft at their base in Payerne April 9, 2014. The new solar powered aircraft weights 2.4 tons with a wingspan of 72 meter and more than 17,000 solar cells. REUTERS/Denis Balibouse (SWITZERLAND - Tags: TRANSPORT ENVIRONMENT)
Pilot and co-founder of Solar Impulse Piccard and co-pilot Borschberg attend the official unveiling ceremony of the Solar Impulse II aircraft at their base in Payerne
Pilot and co-founder of Solar Impulse Bertrand Piccard (L) and co-pilot Andre Borschberg attend the official unveiling ceremony of the Solar Impulse II aircraft at their base in Payerne April 9, 2014. The new solar powered aircraft weights 2.4 tons with a wingspan of 72 meter and more than 17,000 solar cells. REUTERS/Denis Balibouse (SWITZERLAND - Tags: TRANSPORT ENVIRONMENT)
Pilot and co-founder of Solar Impulse Piccard speaks during the official unveiling ceremony of the Solar Impulse II aircraft at their base in Payerne
Pilot and co-founder of Solar Impulse Bertrand Piccard (L) speaks during the official unveiling ceremony of the Solar Impulse II aircraft at their base in Payerne April 9, 2014. The new solar powered aircraft weights 2.4 tons with a wingspan of 72 meter and more than 17,000 solar cells. REUTERS/Denis Balibouse (SWITZERLAND - Tags: TRANSPORT ENVIRONMENT)
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