PAYERNE, Switzerland - A solar plane with wings as wide as a 747 and the power of a small motorboat took to the skies for the first time Wednesday, cruising a mile high at bicycle-like speeds for nearly 1½ hours in a step toward becoming the first sun-powered aircraft to circle the world.
In its maiden test flight, "Solar Impulse" — designed by Swiss adventurer Bertrand Piccard's team — completed a series of turns, slip maneuvers and bank angles reaching 5 degrees. Most importantly, it proved able to take off and land.
The team plans to fly it around the world in 2012, the goal being to show that renewable energy can replace fossil fuel.
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