big slow prop is what you want, no slip like a blender frothing water going nowhere, you want traction/thrust. if an electric motor bogs down, it heats, pulls lot o amps.etc. you want it humming fast and cool, geared down through a planetary gear to a right sized prop. then you can hit the sweet spot of battery run-time/speed/efficiency
Bill Hopen - www.billhopen.com
Hopen Studio Inc - 227 Main St., Sutton WV 26601
304 -765-5611 billhopen@yahoo.com
Hopen Studio Inc - 227 Main St., Sutton WV 26601
304 -765-5611 billhopen@yahoo.com
From: "artzboyz@yahoo.com [electricboats]" <electricboats@yahoogroups.com>
To: electricboats@yahoogroups.com
Sent: Tuesday, August 18, 2015 1:12 PM
Subject: Re: [Electric Boats] Re: 31' Sailboat Conversion
i'm a little confused by the reduction gearboxes. i've read that they are necessary to prevent motor overheating but, if that's true, why not just spin a smaller prop?
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Posted by: Bill and Ai Qiu hopen <billhopen@yahoo.com>
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