Powered by a fuel cell, the XFC (for eXperimental Fuel Cell, and sadly not for Xtreme Flying Cod), fits into a special launch system called the Sea Robin. The Sea Robin, in turn, fits into a torpedo tube on the USS Providence sub. When it's launch time, the torpedo tube spits out the Sea Robin, which then bobs on the water's surface like a buoy. Using an electric launch system, the Sea Robin sends the XFC into the sky, where (as the above picture demonstrates), its wings spread out for flight. The XFC flew for several hours, sending streaming video back to the submarine and other support vessels. It then landed at a Navy testing center in the Bahamas.