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Solar plane lands after completing 24-hour flight
Thursday, July 08, 2010 08:52:12 PM, AP
Solar plane takes off for 24-hour test flight: An experimental solar-powered plane whose makers hope to one day circle the globe using only energy collected from the sun took off for its first 24-hour test flight ..... Read Full
Payerne (Switzerland): An experimental solar-powered plane landed safely on Thursday after completing its first 24-hour test flight, proving that the aircraft can collect enough energy from the sun during the day to stay aloft all night.
Pilot Andre Borschberg eased the Solar Impulse onto the runway at Payerne airfield about 50 kilometers southwest of the Swiss capital Bern at exactly 9 a.m. here on Thursday.
Helpers rushed to stabilize the pioneering plane as it touched down, ensuring that its massive 207-foot wingspan didn’t scrape the ground and topple the craft.
The record feat completes seven years of planning and brings the Swiss-led project one step closer to its goal of circling the globe using only energy from the sun.
“We achieved more than we wanted. Everybody is extremely happy,” Borschberg told reporters after landing.
Previous flights included a brief “flea hop” and a longer airborne test earlier this year, but this week’s attempt was described as a “milestone” by the team.
The team says it has now demonstrated that the single-seat plane can theoretically stay in the air indefinitely, recharging its depleted batteries using 12,000 solar cells and nothing but the rays of the sun during the day.
But while the team says this proves that emissions-free air travel is possible, it doesn’t see solar technology replacing conventional jet propulsion any time soon.
Instead, the project’s overarching purpose is to test and promote new energy-efficient technologies.
Project co-founder Bertrand Piccard, himself a record-breaking balloonist, said many people had been skeptical that renewable energy could ever be used to take a man into the air and keep him there.
“There is a before and after in terms of what people have to believe and understand about renewable energies,” Piccard said, adding that the flight was proof new technologies can help break society’s dependence on fossil fuels.
The team will now set its sights on an Atlantic crossing, before attempting a round-the-world flight in 2013, making only five stops along the way.
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