No orders, but Solar Impulse the coolest plane in Paris

An aircraft called the Solar Impulse was arguably the most technologically advanced machine at the Paris Air Show, powered entirely by solar energy and the first to be capable of flying night and day without using a drop of hydrocarbon fuel.

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An aircraft called the Solar Impulse was arguably the most technologically advanced machine at the Paris Air Show, powered entirely by solar energy and the first to be capable of flying night and day without using a drop of hydrocarbon fuel.