Same as the catamaran sailing boat 6 but a few upgrades for speed and handling. Throttle to use the main sail, VTOL (up) for the foresail. 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 90 degrees. If you wonder why the foresail is so smal: it’s more to steer than for more speed. She has moveable swords and ruders 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.