Solar-powered Aircraft Completes Maiden Voyage

Technology Staff Editor
Posted by in Technology


A prototype solar-powered aircraft took its maiden flight on Wednesday April 7, 2010 ushering in the era of fuel-less, carbon-neutral air travel. The company behind the prototype, Solar Impulse SA (Lausanne, Switzerland) is planning for a round-the-world flight powered only by photons in 2011 or 2012. The Solar Impulse HB-SIA took off from Payerne airfield on its maiden flight at 10:27 central European Summer Time and climbed up to 1200 meters. Test pilot Markus Scherdel spent the next 87 minutes familiarizing himself with the prototype's flight behavior and performing the initial flight exercises before making the first landing on the Vaudois tarmac. The execution of these various maneuvers (turns, simulating the approach phase) was designed to get a feel for the aircraft and verify its controllability. "The HB-SIA behaved just as the flight simulator told us! Despite its immense size and feather weight, the aircraft's controllability matches our expectations," said Scherdel, in a statement. The test flight has come after seven years of research and testing. The plane has a wing span of 63.4 meters (about 208 feet), roughly equivalent to that of the Airbus 340 and yet the HB-SIA weighs about the same as a family automobile. As well as providing lift the giant wing span offers a large surface for the solar cells. The aim of the test flight was to verify the prototype's behavior in flight and to test its reaction to various flight moves. "We still have a long way to go until the night flights and an even longer way before flying round the world, but today, thanks to the extraordinary work of an entire team, an essential step towards achieving our vision has been taken," said Bertrand Piccard, chairman of Solar Impulse. "Our future depends on our ability to convert rapidly to the use of renewable energies. Solar Impulse is intended to demonstrate what can be done already today by using these energies and applying new technologies that can save natural resources." By the numbers Wingspan 63.40 meters Length 21.85 meters Height 6.40 meters Motor power 4 x 10 HP electric engines Solar cells 11,628 (10,748 on the wing, 880 on the horizontal stabilizer) Average flying speed 70 km/hour Maximum altitude 8,500 m (27,900 ft) Weight 1,600 kg Take-off speed 35 km/hour
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  • Roy  (Skip) Kent Martin
    Roy  (Skip) Kent Martin
    Where can I view some pictures, better yet a video of this new plane?
  • Wendell Ferrell
    Wendell Ferrell
    I have invented a machine I call a mechanical jet. It converts torque into thrust VERY efficiently & can store amazing amounts of kenetic energy yet would weigh less than a transmission.  It would eliminate the need of a transmission; results:  Efficiency!
  • Gerrit Beneker
    Gerrit Beneker
    I saw the video. A majestic flight. Remeniscent of Count Zeppelin's rollout circa 1900, not too far from there. Weather will be an issue.
  • Steven Escarez
    Steven Escarez
    Wow, I did not think that solar cells were that efficient compared to other energy sources.

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