A group of French engineering students have crafted a helium filled 2.4-kilowatt solar blimp, dubbed the Sol’r.  They would like their first long flight in the one man blimp to be across the English Channel.
The 22-meter-long blimp (about 72 feet) is made from nylon and polyurethane and covered front-to-back in semi-flexible solar cells. The great [...]