I'm building an RS2000 hull that will sail autonomously across the Atlantic (well, that's the attempted plan).
I'm just trying to analyse the spec of rudder and sail motors i will need. Does anyone know what sort of forces both the sail and rudder will encounter on a RS2000?
Wow an RS2000. A big model indeed. The rudder would need some power for sure. Probably not as much as you might imagine I would say.
It depends on the size of rig you plan on carrying which I'd imagine would be quite small to cope with high winds.
I'm not sure on exact specs but quite a large rudder servo with 4kgs+ of power. The sail would need to be a winch. The most simple setup however would reduce risk. A sail arm is simple compared to a winch.
In saying this, the type of sailing this boat would be doing wouldn't be your standard model sailing with constant trimming and refinement of boat placement in the water. It would be set and forget, very forgiving sail setup so less battery power gets used throughout the day adjusting trim. The rudder would then be doing most of the work keeping the boat powered up.
Very interesting stuff.