Solar Impulse, the solar-powered airplane midway through a historic bid to circle the globe, takes off from Phoenix, Arizona towards its next stop in Tulsa, Oklahoma. Rough Cut (no reporter narration).
ROUGH CUT (NO REPORTER NARRATION) STORY: A solar-powered plane resumed its round-the-world voyage on Thursday (May 12) taking off from Phoenix, Arizona to Tulsa, Oklahoma. The propeller-driven Solar Impulse 2, manned by Bertrand Piccard, took to the skies at 0305 local time (1005gmt), five minutes after its scheduled takeoff time. The Swiss team of Andre Borschberg and fellow pilot Piccard, who both take turns at the controls, are flying the aircraft in a campaign to build support for clean energy technologies and hope eventually to complete its circumnavigation in Abu Dhabi, where the journey began in March 2015. Solar Impulse 2 flies without a drop of fuel, its four engines powered solely by energy collected from more than 17,000 solar cells built into its wings. Surplus power is stored in four batteries during the day, to keep the plane aloft on long-disance flights. The carbon-fiber plane, with a wingspan exceeding that of a Boeing 747 and the weight of a family car. It can climb to 28,000 feet (8,500 meters), and cruise at 34 to 62 mph (55 to 100 kph). Piccard is expected to fly at least 17 hours, 50 minutes until landing late night at Tulsa International Airport.