Solar-powered plane zeroes in on Washington after 'pit stop' in Ohio[ Sat, 15 Jun 2013 18:57:47 GMT ]The Swiss-made Solar Impulse plane took off from Cincinnati on Saturday and headed for Washington, the penultimate stop in a cross-continent, solar-powered odyssey.The overnight layover at Cincinnati Lunken Municipal Airport added a few new twists to the Solar Impulse routine: Cincinnati was added to the schedule just a few days ago when flight planners determined that cross winds and head winds w...