I'd like some thoughts on motors for my anchor handler rebuild please.
I have two bow thrusters of unknown make that take seperate motors attached through a small flexi shaft. All the parts of these thrusters gears, props etc are plastic so I reckon the motors can't be too big or damage will occur.
I need two preferably 6v motors to power the hull. Its dimensions are around 40in long 9in wide, the plans which are now very faded seem to show it requires around 12 kilo's of ballast in the hull to float to waterline, don't really know how much because whilst I built it many years ago, it was never sailed!
It has two steerable kort nozzles at the back with approx 55mm probs, not measured them so thats a guess to size!
Is it feasible to want 6 volt motors for something this big? what rpm's for the motors? I've been looking at some hi-torque ones on ebay in the 600-1000rpm range. However I don't want to find that I put them in and then the thing is underpowered!
Is there some sort of rough guide that can be used to calculate this for future builds?