Same as the catamaran sailing boat 5 but a bit different. Again: better than her sis: less deep, bigger sails, better controls. But without wheels though. Trhottle to use the main sail, VTOL (up or 2/4- 4/4 lsomething like that) for the foresail, just like yaw. Roll/trim to steer, and pitch for the engine (not going backwards). I’m learnig how to build a fast sailing vessel better and better without cheating like geroscoop or something. This one sails best with 15 and 20 mph wind, and goes sometimes twice the speed of the wind on half-wind (wind on 90 degrees). If you wonder why the foresail is so smal: it’s more to steer. The moveable swords and ruders are so you can sail on water with less depth, because they can both turn right down an horizontally. If you like it you can look at my profile for more. Engoy.