Solar-powered aeroplane lands in Phoenix – video Solar Impulse, a prototype solar-powered plane,

 Solar-powered aeroplane lands in Phoenix 

Solar Impulse, a prototype solar-powered plane, lands after the first leg of an expedition across America. The fuel-free craft weighs the same as a small car and flies at an average of 43 mph. The plane is a prototype for a larger solar-powered plane...Solar-powered aeroplane lands in Phoenix – video Solar Impulse, a prototype solar-powered plane,