Icarus Reversed

Diagram courtesy of Solar Impulse

With 12,000 solar-cells attached to wings the size of a standard jet, and with a body as light as a car, the Swiss made HB-SIA solar plane has finally left the runway for it’s 24 hour flight to test its ability to fly in darkness.

Being the first of two vehicles of the Solar Impulse Project, led by pilot Andre Borschberg and Bertrand Piccard, who gained fame for making the first trans-global flight in a hot air balloon in 1999, the HB-SIA has already accomplished a full day flight back in early April. “For seven years now, the whole team has been passionately working to achieve this first decisive step of the project,” Borschberg said before taking off on the flight. He’ll bring the experimental plane on a climb to 27,900 feet before starting a slow descent, flying the plane with the stored solar energy until Thursday morning’s sunrise. 

“If this mission is successful, it will be the longest and highest flight ever made by a solar plane,” the SIP team said, eyeing the future HB-SIB – a larger version of the current prototype with upgraded avionics and a pressurized cabin. The HB-SIB will be used to make the first solar-powered manned-Trans-Atlantic flight in 2012, and with a Trans-Global flight pre-scheduled for 2013. 

Though for now, they’ll settle for the excitement of a successful nighttime flight, as it will prove the practical benefits of solar power in the aviation industry, as well as acting as the “poster child” for the use of solar power in many other industries.