nioko wrote:That's a pretty small motor, driven at the Limit, it might have quite a lot of power, but i don't think that it'll handle being driven at the limit for a long time (which will be the case in your scenario).
Then there's another issue, since it's an outrunner, it'll be difficult to cool it, if you go for an inrunner, you could at water cooling, which would make it more durable.
nioko wrote:Xanda2260 wrote:Cooling isnt likely to be too big a deal, it will be underwater!
So how would you watercool an outrunner?
fechter wrote:It would probably be a lot easier to take a used trolling motor and modify it. Most of them are made for 12v, but I suspect you could run most of them at 24v or more with the right speed controller. Check Craigslist and eBay.
fechter wrote:I was thinking if your trolling motor was orginally designed for a large bass boat and now you put it on a small kayak, the load will not be that much greater. The propeller load will depend quite a bit on craft speed. If the controller has a reasonable current limit and the limiter works properly, then the motor will just go as fast as it can go for the given amount of current (and never burn up). Overheating the windings will be unlikely with water cooling, but I could imagine commutator failures.
I think a kayak might be pretty fun with an overvolted motor.
Jeremy Harris wrote:
The effect of boat speed on propeller load is pretty small, the overwhelming effect is that of propeller rpm and that dreaded cube law. Many people have tried over-volting trolling motors, most have ended in tears, usually with the brushes and com burnt out.
bigmoose wrote:vax is it possible for you to post some pix of the Audi starter planetaries with a ruler in view? Might be useful for other applications on the board!
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