gizmag Article: The flight of the Manta Ray

gizmag Article: The flight of the Manta Ray: "June 27, 2006 Last week we ran a story on the Kite Tube, a human-bearing inflatable towable water kite and within a week we’ve been sent another one – the Manta Ray has an 11 foot wingspan and is specially designed body to allow an average-sized body to rise out of the water and hover in the air. It takes approximately 23 mph moving to get an average sized adult airborn and hovering but as can be seen from this video, once the Manta Ray is airborn, it can hang there for very long period.