Yeah Danny, that's me. These boats are, like, 99dB efficient. Because the boat is always going faster than the wind, it actually powers up from the air created by your forward motion. Efficient ? Well, these boats will go 5 to 6X the actual wind speed. So 10 knots of wind in these conditions will get you near 60mph. Now, that doesn't sound like much, but when you're laying flat on your back 3" off the ice, it feels WAY fast. The mast is composite carbon and bends like a hunter's bow. When the mast snaps back vertical you become the "arrow". Those instantaneous accelerations are 100 plus ! I'm at 58.7mph in the picture. You can see the intense compression on the plank that holds the side runners beneath my body. In these conditions, 10,000 lbs of compression has been measured. No jib necessary, in fact, the sail is much like a plane's wing. If it's over curved(cambered) and not kept in tight, the sail will stall, just like a plane. We just stop....falling from the sky, not so good. Theoretically, if the lake was infinitely long, these boats would continue to accelerate, much like a flywheel. Even though the ice can be silk smooth, things really start to shake. We use aviation quality epoxy to hold these things together. Oh, BTW, the surround sound is wonderous !
Speaking of "FAST", here's my take on the Super Vs.
