I like the concept. This is how pelicans flow low over the water. However, I have sailed between the Hawaiian islands. The air and water are turbulent due to tr

I like the concept. This is how pelicans flow low over the water. However, I have sailed between the Hawaiian islands. The air and water are turbulent due to trade winds and currents getting pushed through gaps in the islands, especially between Oahu and Maui, the most popular route. I looked at the video on their website and it didn't appear stable enough in flight to withstand a big puff pushing it down into a double-size wave. It would probably only work in a narrow weather window.