June 14, 2007 The ambitious WINDREAM ONE project to cross the Atlantic Ocean in a sail balloon driven by natural and renewable energy sources is progressing. Test flights got underway last Saturday with a small prototype balloon designed to test the curved carbon foil which will run under the water’s surface and guide the 900m3 helium balloon’s flight path via a 50 metre cable. The prototype also gave Stephan Rousson an opportunity to test the pedal power and he reports that it was an absolutely brilliant flight which lasted four hours.

View gallery - 3 images