Pedal Foil Double

-- Last Updated: Mar-30-13 8:10 PM EST --

http://youtu.be/tvlS-4t54cc

Great maneuverability too...

And, the racing version:
http://youtu.be/RvE6Xd6tgPA

Incredible!
The speed and maneuverability is stunning. It looks so… inconceivable.