I am sure you will get replies from others with more experience, but here is my 2 cents. Electric motors can theoretically operate in both directions equally well, but there are mechanical things that could get in the way of that. If there are any gears involved, they might be more efficient in one direction. Non-sealed motors might have cooling fan blades mounted internally that operate more effectively in one direction than the other. The fact that yours "runs more smoothly and quietly" in one direction indicates there is a mechanical difference of some sort. Finally some controllers seem to limit the power going to the motor in reverse.
Your motor might do fine either way, but you can't assume that without more study of the system as a whole.
Pat
--- In electricboats@yahoogroups.com, "mboucher99" <mboucher99@...> wrote:
>
> sorry for multiple posts - i can't seem effectively proofread my own writing. here goes...
>
> I am about to upgrade our 2-blade, 12" dia x only 5"(?)pitch prop with a 12" dia by either 13" or 14" pitch prop, as has been recommended by several of you. any other thoughts on that? the boat is a 27' sloop. the current setup does fine in normal conditions, but is weak in strong currents.
>
> today's question: does it matter with an electric motor whether i buy a R or L direction prop? forward is currently a LEFT-hand twist, but the setup runs more smoothly and quietly spinning RIGHT (clockwise, as viewed from behind). can't i simply reverse my F/R switch and use a RIGHT-hand prop instead, or are there other considerations - motor - PMAC controller - or others, that i am not considering?
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> thanks! (again)
>
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