Solar Impulse completes first round-the-world flight powered by the sun

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Solar and battery powered airplane has successfully circumnavigated the globe, flying more than 42,000km in 17 legs using only the power of the sun.

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The ground-breaking around the world flight of the zero-emissions solar powered electric airplane Solar Impulse has been successfully completed, with the aircraft touching down in Abu Dhabi – where the incredible journey first began back in January 2015 – after flying more than 42,000km in 17 legs using only the power of the sun.

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Swiss pilot André Borschberg landed the plane safely on Tuesday morning to much rejoicing from the ground crew in both Monaco and in Abu Dhabi, where he was reunited with his co-pilot on the incredible journey, Bertrand Piccard.

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Si2 team at the Monaco control centre celebrate the final touch down
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André Borschberg (inside plane) and Bertrand Piccard reunited on the tarmac at Abu Dhabi

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“Taking turns at the controls of Solar Impulse 2 (Si2) … Bertrand Piccard and André Borschberg succeeded in their crazy dream of achieving the first ever Round-The-World Solar Flight,” the Solar Impulse blog said.

“By landing back in Abu Dhabi after a total of 21 days of flight travelled in a 17-leg journey, Si2 has proven that clean technologies can achieve the impossible.”

The 2.3 tonne Solar Impulse plane is powered by 17,248 solar cells and 4 lithium-ion batteries connected to the electric motors that drive the propellers. It uses the batteries to provide the energy to fly through the night, where it slowly loses altitude. The solar panels provide the power to the electric motors and charge the battery during the day, when the plane regains altitude so it can use less power at night.

Solar Impulse 2 above the clouds

The final leg of the journey, from Cairo to Abu Dhabi, took just over two days, but along the way the Solar Impulse pilots clocked up some amazing statistics, including a record-breaking 7,200km, 188 hour non-stop flight across the Pacific from Japan, and a 71-hour transatlantic flight from New York to Seville.

According to the blog, the two Swiss pilots now plan to move on to “new innovative projects, such as the development of solar powered drones,” as part of their continued advocacy for renewables and their role on the International Committee for Clean Technologies.

Just over a week ago Piccard and Borschberg made the stunning prediction that there would be short-haul electric planes for up to 50 people operating within 10 years.

“This is the beginning of a new cycle,” co-pilot Bertrand Piccard told the Bloomberg New Energy Finance publication Clean Energy and Carbon Brief in an interview this week. He predicted a “new paradigm” of planes flying with no fuel, but being powered by batteries that are charged by solar power.

“Before 10 years’ time, we will have short-haul electric airplanes for 50 people,” Piccard said in the interview.

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1 Comment
  1. john 2 years ago

    I have followed this journey from start to finish and because they landed 10 am Au time was able to follow the final journey.
    It is very apparent that they were given a lot more attention in the more undeveloped parts of the world than in countries like ours.
    While the flight has been a major achievement it just may spur some innovation to utilize that huge power source more.
    One aspect to my mind is to put in large PV systems to provide power for Electric Vehicles, as i see land transport as the forefront of utilizing the sun as a power source directly not indirectly, as is the present case with ICE vehicles.
    As to seeing drones powered by solar as viable; once again I do think solar array charging systems to power the batteries to drive them as being eminently viable.

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