The first plane to fly day and night on solar power took off Friday from Moffett Field in California, headed across the U.S. Two pilots will take turns flying 20-hour stretches apiece on the 5-leg ... more 
The first plane to fly day and night on solar power took off Friday from Moffett Field in California, headed across the U.S. Two pilots will take turns flying 20-hour stretches apiece on the 5-leg trip, ending at New York's JFK Airport in early July. The Solar Impulse HB-SIA aircraft has the wingspan of a jumbo jet but the weight of a car, and will travel about 40 miles an hour. less 
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Tue, Mar 11, 2014 6:37 AM EDT