Your motor should be able to run wide open throttle without hitting current limit. This would typically be a loaded operation speed 85% of your no-load speed. Since work = speed x torque, and current limit will regulate your torque, try to get more speed.
Good luck with pulleys and cantilevered shaft alignment, and the belt and tensioner...Direct drive is sooo much simpler.
Be Well,
Arby
Advanced Marine Electric Propulsion
A better way to ask my question might be "Is there an efficiency advantage to operating the motor at a higher rpm for a given KWh output?".
--- In electricboats@yahoogroups. , "toddbates99" <toddbates99@com ...> wrote:
>
> I'm trying to use the spreadsheet to estimate the best gear ratio. Its got a lot of info but a steep learning curve. Finally figured out how to match the required HP to the HP for a given diameter/pitch. So now I think that my best propeller RPM should be 1020. So is there a best RPM to operate the 72 volt mars motor at? Best in this case would be RPM rather than maximum power.
>
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