http___metro-portal.hr_solar-impulse-letio-26-sati-iskljucivo-suncevom-energijom_44156_1.xml
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A solar-powered plane is getting ready to hit the skies once again - this time, at night. It will be the first ever manned night flight on a plane propelled exclusively by solar energy. Solar Impulse will lift off from an airfield in Switzerland, on a sunny day sometime at the end of June. It will then fly around, charging the solar cells on the plane’s wings, in a bid to store enough energy for the electric motors to last until dawn. The aim of the project’s founders, Andre Borschberg and round-the-world balloonist Bertrand Piccard, is to show that a solar-powered craft is able to fly day and night - and eventually long-distance flights - without any fuel. “These night flights in an aircraft propelled uniquely by solar energy are intended to demonstrate the potential of the renewable energies and the technologies that will gradually enable us to diminish our dependence on oil”, said Dr Piccard. The HB-SIA, as the plane is called, has a wingspan of 61m - comparable to a super-jumbo jet. But at just 1.5t, it is only the weight of a saloon car. It first left the ground in December 2009 and has since performed a series of short daytime flight tests, dubbed “flea-hops”, venturing no higher than 60cm (2ft) in altitude and 300m in distance. The first full day flight was completed on 7 April. (via) <= Click for the full story PROGRESS. this is a major breakthrough. i’m so excited, i really hope this works. THIS is the bees knees.
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Solar Impulse letio 26 sati isključivo sunčevom energijom Nakon neuspješnog pokušaja od prije nekoliko dana, Solar Impulse je položio svoj prvi veliki ispit Zrakoplov na solarni pogon Solar Impulse sletio je u četvrtak u Payerne u Švicarskoj nakon 26 sati leta tijekom kojih je bio pogonjen isključivo sunčevom energijom. Zrakoplovom je upravljao nekadašnji pilot švicarskih zračnih snaga Andre Borschberg, a drugi inicijator projekta, čiji je cilj obići svijet zrakoplovom koji će biti pogonjen električnom energijom dobivenom iz sunčane energije 2012. godine je Bertrand Piccard. Piccard je sam prije 11 godina izveo prvi non-stop let oko svijeta u balonu. Solar Impulse, s 12 tisuća solarnih ćelija ugrađenih u 64,3 metra krila, pogone četiri električna motora, a težak je 1.600 kg.(hina/metro-portal) >>Kreće razvoj tehnologije prikupljanja solarne energije u svemiru