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| The fully solar-powered Solar Impulse plane will start operations in 2014 |
The Solar Impulse, a Swiss long-range solar powered airplane, developed by Bertrand Piccard and André Borschberg will be the first fully solar powered airplane tot circle the earth in 2014. Solar Impulse has a total wingspan of a large airliner plane, but measures in weight no more than a medium-sized passenger car. It uses twelve-thousand solar cells on the 64-meter spanned wings to charge its ultra-efficient batteries, providing energy for the 10-horsepower electric engines that drive the propellers The average speed of the Solar Impulse airplane is 70 km/h with a maximum altitude of 8,500 meters.
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