Hell; why not 50 knots ? Better still 60 !
Ohh darn, no water born sail craft ever went beyond 50 knots, so that will be a little too obvious.
Okay lets settle on 40 knots then. Only 8.6 knots slower then the most technologically advanced multihull ever. Never mind that it could achieve this speed only on a starboard tack, we'll just say we can do 40 knots on either tack using a low tech soft sail rig. The people in the world are simply too dumb to think for themselfs anyway, they will believe anything we say.
Who out there truly understands that this is aerodynamically impossible ?
Wouter