
Submission + - Solar plane to make public debut (bbc.co.uk)
vigmeister writes: "Swiss adventurer Bertrand Picard is set to unveil a prototype of the solar-powered plane he hopes eventually to fly around the world. The initial version, spanning 61m but weighing just 1,500kg, will undergo trials to prove it can fly at night. Mr Picard, who made history by circling the globe non-stop in a balloon in 1999, says he wants to demonstrate the potential of renewable energies. He expects to make a crossing of the Atlantic in 2012. The HB-SIA has the look of a glider but is on the scale — in terms of its width — of a modern airliner. The aeroplane incorporates composite materials to keep it extremely light and uses super-efficient solar cells, batteries, motors and propellers to get it through the dark hours. The public unveiling on Friday of the HB-SIA is taking place at Dubendorf airfield near Zürich."